121959340 has 24 divisors (see below), whose sum is σ = 267251040. Its totient is φ = 46662528.

The previous prime is 121959329. The next prime is 121959353. The reversal of 121959340 is 43959121.

It is a super-2 number, since 2×121959340² = 29748161226471200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121959296 and 121959305.

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, 132105 + ... + 133024.

It is an arithmetic number, because the mean of its divisors is an integer number (11135460).

Almost surely, 2^121959340 is an apocalyptic number.

121959340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121959340 is an abundant number, since it is smaller than the sum of its proper divisors (145291700).

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

121959340 is a wasteful number, since it uses less digits than its factorization.

121959340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265161 (or 265159 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 121959340 is about 11043.5202720872. The cubic root of 121959340 is about 495.9124617887.

The spelling of 121959340 in words is "one hundred twenty-one million, nine hundred fifty-nine thousand, three hundred forty".