118564780 has 24 divisors (see below), whose sum is σ = 252141120. Its totient is φ = 46824960.

The previous prime is 118564759. The next prime is 118564781. The reversal of 118564780 is 87465811.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (118564781) 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 7 ways as a sum of consecutive naturals, for example, 35941 + ... + 39100.

It is an arithmetic number, because the mean of its divisors is an integer number (10505880).

Almost surely, 2^118564780 is an apocalyptic number.

118564780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118564780 is an abundant number, since it is smaller than the sum of its proper divisors (133576340).

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

118564780 is a wasteful number, since it uses less digits than its factorization.

118564780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75129 (or 75127 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 118564780 is about 10888.7455659502. The cubic root of 118564780 is about 491.2681022882.

The spelling of 118564780 in words is "one hundred eighteen million, five hundred sixty-four thousand, seven hundred eighty".