254370491 has 4 divisors (see below), whose sum is σ = 254490792. Its totient is φ = 254250192.

The previous prime is 254370481. The next prime is 254370497. The reversal of 254370491 is 194073452.

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-254370491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254370497) 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, 56921 + ... + 61226.

It is an arithmetic number, because the mean of its divisors is an integer number (63622698).

Almost surely, 2^254370491 is an apocalyptic number.

254370491 is a deficient number, since it is larger than the sum of its proper divisors (120301).

254370491 is a wasteful number, since it uses less digits than its factorization.

254370491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120300.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 254370491 is about 15948.9965515076. The cubic root of 254370491 is about 633.6103207321.

The spelling of 254370491 in words is "two hundred fifty-four million, three hundred seventy thousand, four hundred ninety-one".