121159552 has 32 divisors (see below), whose sum is σ = 246997080. Its totient is φ = 59168256.

The previous prime is 121159547. The next prime is 121159567. The reversal of 121159552 is 255951121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5503 + ... + 16510.

Almost surely, 2^121159552 is an apocalyptic number.

121159552 is the 5504-th decagonal number.

It is an amenable number.

121159552 is an abundant number, since it is smaller than the sum of its proper divisors (125837528).

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

121159552 is an equidigital number, since it uses as much as digits as its factorization.

121159552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22070 (or 22058 counting only the distinct ones).

The product of its digits is 4500, while the sum is 31.

The square root of 121159552 is about 11007.2499744487. The cubic root of 121159552 is about 494.8260477776.

The spelling of 121159552 in words is "one hundred twenty-one million, one hundred fifty-nine thousand, five hundred fifty-two".