232155613 has 4 divisors (see below), whose sum is σ = 232192480. Its totient is φ = 232118748.

The previous prime is 232155611. The next prime is 232155617. The reversal of 232155613 is 316551232.

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 232155613 - 2¹ = 232155611 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 (232155611) 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, 6345 + ... + 22462.

It is an arithmetic number, because the mean of its divisors is an integer number (58048120).

Almost surely, 2^232155613 is an apocalyptic number.

It is an amenable number.

232155613 is a deficient number, since it is larger than the sum of its proper divisors (36867).

232155613 is an equidigital number, since it uses as much as digits as its factorization.

232155613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36866.

The product of its digits is 5400, while the sum is 28.

The square root of 232155613 is about 15236.6536024155. The cubic root of 232155613 is about 614.6007173168.

The spelling of 232155613 in words is "two hundred thirty-two million, one hundred fifty-five thousand, six hundred thirteen".