254764921 has 8 divisors (see below), whose sum is σ = 258212864. Its totient is φ = 251339760.

The previous prime is 254764919. The next prime is 254764927. The reversal of 254764921 is 129467452.

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

It is a cyclic number.

It is not a de Polignac number, because 254764921 - 2¹ = 254764919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254764927) 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 7 ways as a sum of consecutive naturals, for example, 17446 + ... + 28528.

It is an arithmetic number, because the mean of its divisors is an integer number (32276608).

Almost surely, 2^254764921 is an apocalyptic number.

It is an amenable number.

254764921 is a deficient number, since it is larger than the sum of its proper divisors (3447943).

254764921 is a wasteful number, since it uses less digits than its factorization.

254764921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11391.

The product of its digits is 120960, while the sum is 40.

The square root of 254764921 is about 15961.3571164861. The cubic root of 254764921 is about 633.9376462476.

The spelling of 254764921 in words is "two hundred fifty-four million, seven hundred sixty-four thousand, nine hundred twenty-one".