115071531 has 8 divisors (see below), whose sum is σ = 153489360. Its totient is φ = 76684032.

The previous prime is 115071529. The next prime is 115071547. The reversal of 115071531 is 135170511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 115071531 - 2¹ = 115071529 is a prime.

It is a super-2 number, since 2×115071531² = 26482914493367922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115071511) 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 7 ways as a sum of consecutive naturals, for example, 3651 + ... + 15603.

It is an arithmetic number, because the mean of its divisors is an integer number (19186170).

Almost surely, 2^115071531 is an apocalyptic number.

115071531 is a deficient number, since it is larger than the sum of its proper divisors (38417829).

115071531 is a wasteful number, since it uses less digits than its factorization.

115071531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15165.

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

The square root of 115071531 is about 10727.1399263737. The cubic root of 115071531 is about 486.3952186629.

The spelling of 115071531 in words is "one hundred fifteen million, seventy-one thousand, five hundred thirty-one".