251083379 has 4 divisors (see below), whose sum is σ = 251423880. Its totient is φ = 250742880.

The previous prime is 251083351. The next prime is 251083403. The reversal of 251083379 is 973380152.

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 251083379 - 2²⁰ = 250034803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (251085379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169142 + ... + 170619.

It is an arithmetic number, because the mean of its divisors is an integer number (62855970).

Almost surely, 2^251083379 is an apocalyptic number.

251083379 is a deficient number, since it is larger than the sum of its proper divisors (340501).

251083379 is an equidigital number, since it uses as much as digits as its factorization.

251083379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340500.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 251083379 is about 15845.6107171671. The cubic root of 251083379 is about 630.8691949681.

The spelling of 251083379 in words is "two hundred fifty-one million, eighty-three thousand, three hundred seventy-nine".