121906080 has 96 divisors (see below), whose sum is σ = 426686400. Its totient is φ = 32507136.

The previous prime is 121906073. The next prime is 121906093. The reversal of 121906080 is 80609121.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×121906080² = 29722184681932800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9790 + ... + 18429.

It is an arithmetic number, because the mean of its divisors is an integer number (4444650).

Almost surely, 2^121906080 is an apocalyptic number.

121906080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121906080 is an abundant number, since it is smaller than the sum of its proper divisors (304780320).

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

121906080 is a wasteful number, since it uses less digits than its factorization.

121906080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28243 (or 28229 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 121906080 is about 11041.1086399872. The cubic root of 121906080 is about 495.8402624709.

The spelling of 121906080 in words is "one hundred twenty-one million, nine hundred six thousand, eighty".