Search a number
-
+
164325131 = 191860341
BaseRepresentation
bin10011100101101…
…10011100001011
3102110012120200222
421302312130023
5314031401011
624150020255
74033512005
oct1162663413
9373176628
10164325131
11848369a3
124704768b
1328076309
1417b77375
15e65dddb
hex9cb670b

164325131 has 4 divisors (see below), whose sum is σ = 165185664. Its totient is φ = 163464600.

The previous prime is 164325047. The next prime is 164325151. The reversal of 164325131 is 131523461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131523461 = 748117581.

It is a cyclic number.

It is not a de Polignac number, because 164325131 - 210 = 164324107 is a prime.

It is a super-2 number, since 2×1643251312 = 54005497356334322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164325131.

It is not an unprimeable number, because it can be changed into a prime (164325151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429980 + ... + 430361.

It is an arithmetic number, because the mean of its divisors is an integer number (41296416).

Almost surely, 2164325131 is an apocalyptic number.

164325131 is a deficient number, since it is larger than the sum of its proper divisors (860533).

164325131 is an equidigital number, since it uses as much as digits as its factorization.

164325131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860532.

The product of its digits is 2160, while the sum is 26.

The square root of 164325131 is about 12818.9364223402. The cubic root of 164325131 is about 547.7318504013.

Adding to 164325131 its reverse (131523461), we get a palindrome (295848592).

The spelling of 164325131 in words is "one hundred sixty-four million, three hundred twenty-five thousand, one hundred thirty-one".

Divisors: 1 191 860341 164325131