116520140 has 24 divisors (see below), whose sum is σ = 266937552. Its totient is φ = 42370880.

The previous prime is 116520119. The next prime is 116520149. The reversal of 116520140 is 41025611.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (116520149) 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, 264599 + ... + 265038.

It is an arithmetic number, because the mean of its divisors is an integer number (11122398).

Almost surely, 2^116520140 is an apocalyptic number.

116520140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

116520140 is an abundant number, since it is smaller than the sum of its proper divisors (150417412).

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

116520140 is a wasteful number, since it uses less digits than its factorization.

116520140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529657 (or 529655 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 116520140 is about 10794.4494996271. The cubic root of 116520140 is about 488.4277524670.

Adding to 116520140 its reverse (41025611), we get a palindrome (157545751).

The spelling of 116520140 in words is "one hundred sixteen million, five hundred twenty thousand, one hundred forty".