116561144 has 32 divisors (see below), whose sum is σ = 253204320. Its totient is φ = 49268736.

The previous prime is 116561101. The next prime is 116561161. The reversal of 116561144 is 441165611.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10169 + ... + 18344.

It is an arithmetic number, because the mean of its divisors is an integer number (7912635).

Almost surely, 2^116561144 is an apocalyptic number.

116561144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

116561144 is an abundant number, since it is smaller than the sum of its proper divisors (136643176).

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

116561144 is a wasteful number, since it uses less digits than its factorization.

116561144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28599 (or 28595 counting only the distinct ones).

The product of its digits is 2880, while the sum is 29.

The square root of 116561144 is about 10796.3486420178. The cubic root of 116561144 is about 488.4850391093.

The spelling of 116561144 in words is "one hundred sixteen million, five hundred sixty-one thousand, one hundred forty-four".