254157387 has 16 divisors (see below), whose sum is σ = 371070720. Its totient is φ = 153456800.

The previous prime is 254157377. The next prime is 254157413. The reversal of 254157387 is 783751452.

It is a cyclic number.

It is not a de Polignac number, because 254157387 - 2¹¹ = 254155339 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (254157317) 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 15 ways as a sum of consecutive naturals, for example, 5439 + ... + 23192.

It is an arithmetic number, because the mean of its divisors is an integer number (23191920).

Almost surely, 2^254157387 is an apocalyptic number.

254157387 is a deficient number, since it is larger than the sum of its proper divisors (116913333).

254157387 is a wasteful number, since it uses less digits than its factorization.

254157387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28914.

The product of its digits is 235200, while the sum is 42.

The square root of 254157387 is about 15942.3143551995. The cubic root of 254157387 is about 633.4333313633.

It can be divided in two parts, 254 and 157387, that added together give a triangular number (157641 = T₅₆₁).

The spelling of 254157387 in words is "two hundred fifty-four million, one hundred fifty-seven thousand, three hundred eighty-seven".