121653160 has 32 divisors (see below), whose sum is σ = 274498560. Its totient is φ = 48522816.

The previous prime is 121653157. The next prime is 121653163. The reversal of 121653160 is 61356121.

It is an interprime number because it is at equal distance from previous prime (121653157) and next prime (121653163).

It is not an unprimeable number, because it can be changed into a prime (121653163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10537 + ... + 18823.

It is an arithmetic number, because the mean of its divisors is an integer number (8578080).

Almost surely, 2^121653160 is an apocalyptic number.

121653160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121653160 is an abundant number, since it is smaller than the sum of its proper divisors (152845400).

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

121653160 is a wasteful number, since it uses less digits than its factorization.

121653160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8665 (or 8661 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 121653160 is about 11029.6491331320. The cubic root of 121653160 is about 495.4971164804.

The spelling of 121653160 in words is "one hundred twenty-one million, six hundred fifty-three thousand, one hundred sixty".