115632131 has 4 divisors (see below), whose sum is σ = 115764264. Its totient is φ = 115500000.

The previous prime is 115632107. The next prime is 115632163. The reversal of 115632131 is 131236511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131236511 = 7 ⋅18748073.

It is a cyclic number.

It is not a de Polignac number, because 115632131 - 2¹⁸ = 115369987 is a prime.

It is a super-2 number, since 2×115632131² = 26741579439202322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115632097 and 115632106.

It is not an unprimeable number, because it can be changed into a prime (115632331) 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 in 3 ways as a sum of consecutive naturals, for example, 64745 + ... + 66506.

It is an arithmetic number, because the mean of its divisors is an integer number (28941066).

Almost surely, 2^115632131 is an apocalyptic number.

115632131 is a deficient number, since it is larger than the sum of its proper divisors (132133).

115632131 is an equidigital number, since it uses as much as digits as its factorization.

115632131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132132.

The product of its digits is 540, while the sum is 23.

The square root of 115632131 is about 10753.2381634557. The cubic root of 115632131 is about 487.1838051276.

Adding to 115632131 its reverse (131236511), we get a palindrome (246868642).

The spelling of 115632131 in words is "one hundred fifteen million, six hundred thirty-two thousand, one hundred thirty-one".