121161575 has 12 divisors (see below), whose sum is σ = 158148360. Its totient is φ = 91827360.

The previous prime is 121161563. The next prime is 121161587. The reversal of 121161575 is 575161121.

It is an interprime number because it is at equal distance from previous prime (121161563) and next prime (121161587).

It is not a de Polignac number, because 121161575 - 2⁴ = 121161559 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127064 + ... + 128013.

It is an arithmetic number, because the mean of its divisors is an integer number (13179030).

Almost surely, 2^121161575 is an apocalyptic number.

121161575 is a deficient number, since it is larger than the sum of its proper divisors (36986785).

121161575 is a wasteful number, since it uses less digits than its factorization.

121161575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255106 (or 255101 counting only the distinct ones).

The product of its digits is 2100, while the sum is 29.

The square root of 121161575 is about 11007.3418680443. The cubic root of 121161575 is about 494.8288017977.

The spelling of 121161575 in words is "one hundred twenty-one million, one hundred sixty-one thousand, five hundred seventy-five".