121166529 has 16 divisors (see below), whose sum is σ = 176427264. Its totient is φ = 73357200.

The previous prime is 121166519. The next prime is 121166537. The reversal of 121166529 is 925661121.

It is not a de Polignac number, because 121166529 - 2⁸ = 121166273 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121166529.

It is not an unprimeable number, because it can be changed into a prime (121166519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55794 + ... + 57924.

It is an arithmetic number, because the mean of its divisors is an integer number (11026704).

Almost surely, 2^121166529 is an apocalyptic number.

It is an amenable number.

121166529 is a deficient number, since it is larger than the sum of its proper divisors (55260735).

121166529 is a wasteful number, since it uses less digits than its factorization.

121166529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3868.

The product of its digits is 6480, while the sum is 33.

The square root of 121166529 is about 11007.5668973666. The cubic root of 121166529 is about 494.8355458183.

The spelling of 121166529 in words is "one hundred twenty-one million, one hundred sixty-six thousand, five hundred twenty-nine".