253413947 has 8 divisors (see below), whose sum is σ = 258717072. Its totient is φ = 248148000.

The previous prime is 253413943. The next prime is 253413959. The reversal of 253413947 is 749314352.

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

It is not a de Polignac number, because 253413947 - 2² = 253413943 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 253413947.

It is not an unprimeable number, because it can be changed into a prime (253413943) 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, 4697 + ... + 22997.

It is an arithmetic number, because the mean of its divisors is an integer number (32339634).

Almost surely, 2^253413947 is an apocalyptic number.

253413947 is a deficient number, since it is larger than the sum of its proper divisors (5303125).

253413947 is a wasteful number, since it uses less digits than its factorization.

253413947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18589.

The product of its digits is 90720, while the sum is 38.

The square root of 253413947 is about 15918.9807148573. The cubic root of 253413947 is about 632.8151060528.

The spelling of 253413947 in words is "two hundred fifty-three million, four hundred thirteen thousand, nine hundred forty-seven".