232134521 has 4 divisors (see below), whose sum is σ = 232642932. Its totient is φ = 231626112.

The previous prime is 232134493. The next prime is 232134547. The reversal of 232134521 is 125431232.

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 140185600 + 91948921 = 11840^2 + 9589^2 .

It is a cyclic number.

It is not a de Polignac number, because 232134521 - 2¹⁰ = 232133497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232134121) 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 3 ways as a sum of consecutive naturals, for example, 253520 + ... + 254433.

It is an arithmetic number, because the mean of its divisors is an integer number (58160733).

Almost surely, 2^232134521 is an apocalyptic number.

It is an amenable number.

232134521 is a deficient number, since it is larger than the sum of its proper divisors (508411).

232134521 is an equidigital number, since it uses as much as digits as its factorization.

232134521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508410.

The product of its digits is 1440, while the sum is 23.

The square root of 232134521 is about 15235.9614399617. The cubic root of 232134521 is about 614.5821040101.

Adding to 232134521 its reverse (125431232), we get a palindrome (357565753).

The spelling of 232134521 in words is "two hundred thirty-two million, one hundred thirty-four thousand, five hundred twenty-one".