120691610 has 64 divisors (see below), whose sum is σ = 248814720. Its totient is φ = 41783040.

The previous prime is 120691609. The next prime is 120691621. The reversal of 120691610 is 16196021.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 120691610.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 323384 + ... + 323756.

It is an arithmetic number, because the mean of its divisors is an integer number (3887730).

Almost surely, 2^120691610 is an apocalyptic number.

120691610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120691610 is an abundant number, since it is smaller than the sum of its proper divisors (128123110).

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

120691610 is a wasteful number, since it uses less digits than its factorization.

120691610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 120691610 is about 10985.9733296600. The cubic root of 120691610 is about 494.1881874109.

The spelling of 120691610 in words is "one hundred twenty million, six hundred ninety-one thousand, six hundred ten".