121749696 has 56 divisors (see below), whose sum is σ = 357926640. Its totient is φ = 40582656.

The previous prime is 121749673. The next prime is 121749709. The reversal of 121749696 is 696947121.

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, 33501 + ... + 36956.

Almost surely, 2^121749696 is an apocalyptic number.

121749696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

121749696 is an abundant number, since it is smaller than the sum of its proper divisors (236176944).

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

121749696 is an equidigital number, since it uses as much as digits as its factorization.

121749696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70478 (or 70462 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 121749696 is about 11034.0244697934. The cubic root of 121749696 is about 495.6281465409.

The spelling of 121749696 in words is "one hundred twenty-one million, seven hundred forty-nine thousand, six hundred ninety-six".