Search a number
-
+
13253131 is a prime number
BaseRepresentation
bin110010100011…
…101000001011
3220221022212201
4302203220023
511343100011
61152021031
7220435603
oct62435013
926838781
1013253131
117532301
124531777
1329904b8
141a8dc03
15126bcc1
hexca3a0b

13253131 has 2 divisors, whose sum is σ = 13253132. Its totient is φ = 13253130.

The previous prime is 13253101. The next prime is 13253137. The reversal of 13253131 is 13135231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13253131 - 25 = 13253099 is a prime.

It is a super-2 number, since 2×132531312 = 351290962606322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13253099 and 13253108.

It is not a weakly prime, because it can be changed into another prime (13253137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6626565 + 6626566.

It is an arithmetic number, because the mean of its divisors is an integer number (6626566).

Almost surely, 213253131 is an apocalyptic number.

13253131 is a deficient number, since it is larger than the sum of its proper divisors (1).

13253131 is an equidigital number, since it uses as much as digits as its factorization.

13253131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 270, while the sum is 19.

The square root of 13253131 is about 3640.4849951620. The cubic root of 13253131 is about 236.6498118879.

Adding to 13253131 its reverse (13135231), we get a palindrome (26388362).

The spelling of 13253131 in words is "thirteen million, two hundred fifty-three thousand, one hundred thirty-one".