Search a number
-
+
725150131 is a prime number
BaseRepresentation
bin101011001110001…
…110100110110011
31212112111102222021
4223032032212303
52441114301011
6155542252311
723653450216
oct5316164663
91775442867
10725150131
11342368032
12182a27097
13b7306a24
146c44377d
15439de471
hex2b38e9b3

725150131 has 2 divisors, whose sum is σ = 725150132. Its totient is φ = 725150130.

The previous prime is 725150123. The next prime is 725150159. The reversal of 725150131 is 131051527.

It is a weak prime.

It is an emirp because it is prime and its reverse (131051527) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 725150131 - 23 = 725150123 is a prime.

It is a super-2 number, since 2×7251501312 = 1051685424978634322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 725150096 and 725150105.

It is not a weakly prime, because it can be changed into another prime (725150431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362575065 + 362575066.

It is an arithmetic number, because the mean of its divisors is an integer number (362575066).

Almost surely, 2725150131 is an apocalyptic number.

725150131 is a deficient number, since it is larger than the sum of its proper divisors (1).

725150131 is an equidigital number, since it uses as much as digits as its factorization.

725150131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 725150131 is about 26928.6117540433. The cubic root of 725150131 is about 898.4128946331.

The spelling of 725150131 in words is "seven hundred twenty-five million, one hundred fifty thousand, one hundred thirty-one".