121070656 has 56 divisors (see below), whose sum is σ = 279806400. Its totient is φ = 50898432.

The previous prime is 121070633. The next prime is 121070659. The reversal of 121070656 is 656070121.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (121070659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21195 + ... + 26293.

Almost surely, 2^121070656 is an apocalyptic number.

121070656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121070656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139903200).

121070656 is an abundant number, since it is smaller than the sum of its proper divisors (158735744).

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

121070656 is an equidigital number, since it uses as much as digits as its factorization.

It is an anagram of its base 8 representation: 121070656 = (715662100)₈.

121070656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5171 (or 5161 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 121070656 is about 11003.2111676546. The cubic root of 121070656 is about 494.7049985270.

The spelling of 121070656 in words is "one hundred twenty-one million, seventy thousand, six hundred fifty-six".