254451139 has 8 divisors (see below), whose sum is σ = 265674240. Its totient is φ = 243241416.

The previous prime is 254451107. The next prime is 254451161. The reversal of 254451139 is 931154452.

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 254451139 - 2⁵ = 254451107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (254451839) 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, 69964 + ... + 73510.

It is an arithmetic number, because the mean of its divisors is an integer number (33209280).

Almost surely, 2^254451139 is an apocalyptic number.

254451139 is a deficient number, since it is larger than the sum of its proper divisors (11223101).

254451139 is a wasteful number, since it uses less digits than its factorization.

254451139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6689.

The product of its digits is 21600, while the sum is 34.

The square root of 254451139 is about 15951.5246606712. The cubic root of 254451139 is about 633.6772755710.

The spelling of 254451139 in words is "two hundred fifty-four million, four hundred fifty-one thousand, one hundred thirty-nine".