254431613 has 4 divisors (see below), whose sum is σ = 254497308. Its totient is φ = 254365920.

The previous prime is 254431579. The next prime is 254431631. The reversal of 254431613 is 316134452.

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

It can be written as a sum of positive squares in 2 ways, for example, as 206295769 + 48135844 = 14363^2 + 6938^2 .

It is a cyclic number.

It is not a de Polignac number, because 254431613 - 2²⁴ = 237654397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254431813) 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, 26648 + ... + 34913.

It is an arithmetic number, because the mean of its divisors is an integer number (63624327).

Almost surely, 2^254431613 is an apocalyptic number.

It is an amenable number.

254431613 is a deficient number, since it is larger than the sum of its proper divisors (65695).

254431613 is an equidigital number, since it uses as much as digits as its factorization.

254431613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65694.

The product of its digits is 8640, while the sum is 29.

The square root of 254431613 is about 15950.9126071206. The cubic root of 254431613 is about 633.6610661735.

The spelling of 254431613 in words is "two hundred fifty-four million, four hundred thirty-one thousand, six hundred thirteen".