232459921 has 4 divisors (see below), whose sum is σ = 246134052. Its totient is φ = 218785792.

The previous prime is 232459907. The next prime is 232459933. The reversal of 232459921 is 129954232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 203461696 + 28998225 = 14264^2 + 5385^2 .

It is a cyclic number.

It is not a de Polignac number, because 232459921 - 2¹¹ = 232457873 is a prime.

It is a super-2 number, since 2×232459921² = 108075229742652482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232454921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6837040 + ... + 6837073.

It is an arithmetic number, because the mean of its divisors is an integer number (61533513).

Almost surely, 2^232459921 is an apocalyptic number.

It is an amenable number.

232459921 is a deficient number, since it is larger than the sum of its proper divisors (13674131).

232459921 is a wasteful number, since it uses less digits than its factorization.

232459921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13674130.

The product of its digits is 38880, while the sum is 37.

The square root of 232459921 is about 15246.6363831502. The cubic root of 232459921 is about 614.8691382175.

The spelling of 232459921 in words is "two hundred thirty-two million, four hundred fifty-nine thousand, nine hundred twenty-one".