121857088 has 56 divisors (see below), whose sum is σ = 261591552. Its totient is φ = 56100864.

The previous prime is 121857079. The next prime is 121857103. The reversal of 121857088 is 880758121.

It is a self number, because there is not a number n which added to its sum of digits gives 121857088.

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, 49945 + ... + 52327.

Almost surely, 2^121857088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121857088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130795776).

121857088 is an abundant number, since it is smaller than the sum of its proper divisors (139734464).

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

121857088 is a wasteful number, since it uses less digits than its factorization.

121857088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2459 (or 2449 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 40.

The square root of 121857088 is about 11038.8897992506. The cubic root of 121857088 is about 495.7738302879.

The spelling of 121857088 in words is "one hundred twenty-one million, eight hundred fifty-seven thousand, eighty-eight".