116257531 has 8 divisors (see below), whose sum is σ = 125599824. Its totient is φ = 106972320.

The previous prime is 116257517. The next prime is 116257541. The reversal of 116257531 is 135752611.

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

It is not a de Polignac number, because 116257531 - 2⁵ = 116257499 is a prime.

It is a super-2 number, since 2×116257531² = 27031627028431922, 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 = 116257493 and 116257502.

It is not an unprimeable number, because it can be changed into a prime (116257501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9985 + ... + 18226.

It is an arithmetic number, because the mean of its divisors is an integer number (15699978).

Almost surely, 2^116257531 is an apocalyptic number.

116257531 is a deficient number, since it is larger than the sum of its proper divisors (9342293).

116257531 is a wasteful number, since it uses less digits than its factorization.

116257531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28541.

The product of its digits is 6300, while the sum is 31.

The square root of 116257531 is about 10782.2785625303. The cubic root of 116257531 is about 488.0605426879.

The spelling of 116257531 in words is "one hundred sixteen million, two hundred fifty-seven thousand, five hundred thirty-one".