116531140 has 24 divisors (see below), whose sum is σ = 266962752. Its totient is φ = 42374880.

The previous prime is 116531117. The next prime is 116531147. The reversal of 116531140 is 41135611.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (116531147) 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, 264624 + ... + 265063.

It is an arithmetic number, because the mean of its divisors is an integer number (11123448).

Almost surely, 2^116531140 is an apocalyptic number.

116531140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

116531140 is an abundant number, since it is smaller than the sum of its proper divisors (150431612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

116531140 is a wasteful number, since it uses less digits than its factorization.

116531140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529707 (or 529705 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 116531140 is about 10794.9590087225. The cubic root of 116531140 is about 488.4431218735.

Adding to 116531140 its reverse (41135611), we get a palindrome (157666751).

The spelling of 116531140 in words is "one hundred sixteen million, five hundred thirty-one thousand, one hundred forty".