490712251 has 4 divisors (see below), whose sum is σ = 493548912. Its totient is φ = 487875592.

The previous prime is 490712207. The next prime is 490712303. The reversal of 490712251 is 152217094.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-490712251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490742251) 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, 1418071 + ... + 1418416.

It is an arithmetic number, because the mean of its divisors is an integer number (123387228).

Almost surely, 2^490712251 is an apocalyptic number.

490712251 is a deficient number, since it is larger than the sum of its proper divisors (2836661).

490712251 is a wasteful number, since it uses less digits than its factorization.

490712251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2836660.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 490712251 is about 22152.0258892951. The cubic root of 490712251 is about 788.7553176539.

The spelling of 490712251 in words is "four hundred ninety million, seven hundred twelve thousand, two hundred fifty-one".