254544157 has 4 divisors (see below), whose sum is σ = 290907616. Its totient is φ = 218180700.

The previous prime is 254544109. The next prime is 254544161. The reversal of 254544157 is 751445452.

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 254544157 - 2¹¹ = 254542109 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 (254544187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18181719 + ... + 18181732.

It is an arithmetic number, because the mean of its divisors is an integer number (72726904).

Almost surely, 2^254544157 is an apocalyptic number.

It is an amenable number.

254544157 is a deficient number, since it is larger than the sum of its proper divisors (36363459).

254544157 is an equidigital number, since it uses as much as digits as its factorization.

254544157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36363458.

The product of its digits is 112000, while the sum is 37.

The square root of 254544157 is about 15954.4400403148. The cubic root of 254544157 is about 633.7544825507.

The spelling of 254544157 in words is "two hundred fifty-four million, five hundred forty-four thousand, one hundred fifty-seven".