232156213 has 4 divisors (see below), whose sum is σ = 232903008. Its totient is φ = 231409420.

The previous prime is 232156201. The next prime is 232156217. The reversal of 232156213 is 312651232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 232156213 - 2¹⁷ = 232025141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232156217) 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, 372931 + ... + 373552.

It is an arithmetic number, because the mean of its divisors is an integer number (58225752).

Almost surely, 2^232156213 is an apocalyptic number.

It is an amenable number.

232156213 is a deficient number, since it is larger than the sum of its proper divisors (746795).

232156213 is an equidigital number, since it uses as much as digits as its factorization.

232156213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746794.

The product of its digits is 2160, while the sum is 25.

The square root of 232156213 is about 15236.6732917655. The cubic root of 232156213 is about 614.6012467894.

The spelling of 232156213 in words is "two hundred thirty-two million, one hundred fifty-six thousand, two hundred thirteen".