135630131 has 32 divisors (see below), whose sum is σ = 179319168. Its totient is φ = 99532800.

The previous prime is 135630119. The next prime is 135630133. The reversal of 135630131 is 131036531.

135630131 = T₄₅₈ + T₄₅₉ + ... + T₉₆₈.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 135630131 - 2¹⁸ = 135367987 is a prime.

It is a super-2 number, since 2×135630131² = 36791064870154322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 135630097 and 135630106.

It is not an unprimeable number, because it can be changed into a prime (135630133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112331 + ... + 113531.

It is an arithmetic number, because the mean of its divisors is an integer number (5603724).

Almost surely, 2^135630131 is an apocalyptic number.

135630131 is a deficient number, since it is larger than the sum of its proper divisors (43689037).

135630131 is a wasteful number, since it uses less digits than its factorization.

135630131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 135630131 is about 11646.0349905021. The cubic root of 135630131 is about 513.7897000872.

Adding to 135630131 its reverse (131036531), we get a palindrome (266666662).

The spelling of 135630131 in words is "one hundred thirty-five million, six hundred thirty thousand, one hundred thirty-one".