232121961 has 24 divisors (see below), whose sum is σ = 356035680. Its totient is φ = 145224576.

The previous prime is 232121941. The next prime is 232121999. The reversal of 232121961 is 169121232.

It is not a de Polignac number, because 232121961 - 2¹⁰ = 232120937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (232121921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55986 + ... + 59988.

It is an arithmetic number, because the mean of its divisors is an integer number (14834820).

Almost surely, 2^232121961 is an apocalyptic number.

It is an amenable number.

232121961 is a deficient number, since it is larger than the sum of its proper divisors (123913719).

232121961 is a wasteful number, since it uses less digits than its factorization.

232121961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4405 (or 4402 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 232121961 is about 15235.5492516680. The cubic root of 232121961 is about 614.5710195027.

The spelling of 232121961 in words is "two hundred thirty-two million, one hundred twenty-one thousand, nine hundred sixty-one".