116531355 has 32 divisors (see below), whose sum is σ = 189573120. Its totient is φ = 61119360.

The previous prime is 116531353. The next prime is 116531357. The reversal of 116531355 is 553135611.

It is an interprime number because it is at equal distance from previous prime (116531353) and next prime (116531357).

It is not a de Polignac number, because 116531355 - 2¹ = 116531353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (116531353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 429870 + ... + 430140.

It is an arithmetic number, because the mean of its divisors is an integer number (5924160).

Almost surely, 2^116531355 is an apocalyptic number.

116531355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

116531355 is a deficient number, since it is larger than the sum of its proper divisors (73041765).

116531355 is a wasteful number, since it uses less digits than its factorization.

116531355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651.

The product of its digits is 6750, while the sum is 30.

The square root of 116531355 is about 10794.9689670698. The cubic root of 116531355 is about 488.4434222659.

Adding to 116531355 its reverse (553135611), we get a palindrome (669666966).

It can be divided in two parts, 116531 and 355, that added together give a triangular number (116886 = T₄₈₃).

The spelling of 116531355 in words is "one hundred sixteen million, five hundred thirty-one thousand, three hundred fifty-five".