232139515 has 4 divisors (see below), whose sum is σ = 278567424. Its totient is φ = 185711608.

The previous prime is 232139497. The next prime is 232139561. The reversal of 232139515 is 515931232.

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

It is a cyclic number.

It is not a de Polignac number, because 232139515 - 2¹¹ = 232137467 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23213947 + ... + 23213956.

It is an arithmetic number, because the mean of its divisors is an integer number (69641856).

Almost surely, 2^232139515 is an apocalyptic number.

232139515 is a deficient number, since it is larger than the sum of its proper divisors (46427909).

232139515 is an equidigital number, since it uses as much as digits as its factorization.

232139515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46427908.

The product of its digits is 8100, while the sum is 31.

The square root of 232139515 is about 15236.1253276547. The cubic root of 232139515 is about 614.5865112262.

The spelling of 232139515 in words is "two hundred thirty-two million, one hundred thirty-nine thousand, five hundred fifteen".