121536424 has 16 divisors (see below), whose sum is σ = 228060000. Its totient is φ = 60720432.

The previous prime is 121536413. The next prime is 121536433. The reversal of 121536424 is 424635121.

It is a super-2 number, since 2×121536424² = 29542204717415552, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121536392 and 121536401.

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, 6327 + ... + 16825.

It is an arithmetic number, because the mean of its divisors is an integer number (14253750).

Almost surely, 2^121536424 is an apocalyptic number.

It is an amenable number.

121536424 is a deficient number, since it is larger than the sum of its proper divisors (106523576).

121536424 is a wasteful number, since it uses less digits than its factorization.

121536424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11952 (or 11948 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 121536424 is about 11024.3559449067. The cubic root of 121536424 is about 495.3385759687.

The spelling of 121536424 in words is "one hundred twenty-one million, five hundred thirty-six thousand, four hundred twenty-four".