254433157 has 4 divisors (see below), whose sum is σ = 277563456. Its totient is φ = 231302860.

The previous prime is 254433149. The next prime is 254433181. The reversal of 254433157 is 751334452.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 254433157 - 2³ = 254433149 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 (254433187) 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, 11565133 + ... + 11565154.

It is an arithmetic number, because the mean of its divisors is an integer number (69390864).

Almost surely, 2^254433157 is an apocalyptic number.

It is an amenable number.

254433157 is a deficient number, since it is larger than the sum of its proper divisors (23130299).

254433157 is a wasteful number, since it uses less digits than its factorization.

254433157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23130298.

The product of its digits is 50400, while the sum is 34.

The square root of 254433157 is about 15950.9610055319. The cubic root of 254433157 is about 633.6623479465.

The spelling of 254433157 in words is "two hundred fifty-four million, four hundred thirty-three thousand, one hundred fifty-seven".