121535164 has 6 divisors (see below), whose sum is σ = 212686544. Its totient is φ = 60767580.

The previous prime is 121535131. The next prime is 121535177. The reversal of 121535164 is 461535121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15191892 + ... + 15191899.

Almost surely, 2^121535164 is an apocalyptic number.

It is an amenable number.

121535164 is a deficient number, since it is larger than the sum of its proper divisors (91151380).

121535164 is a wasteful number, since it uses less digits than its factorization.

121535164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30383795 (or 30383793 counting only the distinct ones).

The product of its digits is 3600, while the sum is 28.

The square root of 121535164 is about 11024.2987985631. The cubic root of 121535164 is about 495.3368641944.

The spelling of 121535164 in words is "one hundred twenty-one million, five hundred thirty-five thousand, one hundred sixty-four".