115701531 has 12 divisors (see below), whose sum is σ = 169568616. Its totient is φ = 70121920.

The previous prime is 115701511. The next prime is 115701533. The reversal of 115701531 is 135107511.

It is not a de Polignac number, because 115701531 - 2¹⁷ = 115570459 is a prime.

It is a super-2 number, since 2×115701531² = 26773688551487922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115701533) 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 in 11 ways as a sum of consecutive naturals, for example, 159006 + ... + 159731.

It is an arithmetic number, because the mean of its divisors is an integer number (14130718).

Almost surely, 2^115701531 is an apocalyptic number.

115701531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

115701531 is a deficient number, since it is larger than the sum of its proper divisors (53867085).

115701531 is a wasteful number, since it uses less digits than its factorization.

115701531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318762 (or 318751 counting only the distinct ones).

The product of its (nonzero) digits is 525, while the sum is 24.

The square root of 115701531 is about 10756.4646143610. The cubic root of 115701531 is about 487.2812514974.

The spelling of 115701531 in words is "one hundred fifteen million, seven hundred one thousand, five hundred thirty-one".