1379575231 has 8 divisors (see below), whose sum is σ = 1386898128. Its totient is φ = 1372272000.

The previous prime is 1379575217. The next prime is 1379575247. The reversal of 1379575231 is 1325759731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1379575231 - 2²¹ = 1377478079 is a prime.

It is a super-2 number, since 2×1379575231² = 3806455635977406722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1379575291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148071 + ... + 157111.

It is an arithmetic number, because the mean of its divisors is an integer number (173362266).

Almost surely, 2^1379575231 is an apocalyptic number.

1379575231 is a deficient number, since it is larger than the sum of its proper divisors (7322897).

1379575231 is an equidigital number, since it uses as much as digits as its factorization.

1379575231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9833.

The product of its digits is 198450, while the sum is 43.

The square root of 1379575231 is about 37142.6336034482. The cubic root of 1379575231 is about 1113.2220401518. Note that the first 3 decimals are identical.

The spelling of 1379575231 in words is "one billion, three hundred seventy-nine million, five hundred seventy-five thousand, two hundred thirty-one".