408157 has 4 divisors (see below), whose sum is σ = 409536. Its totient is φ = 406780.

The previous prime is 408137. The next prime is 408169. The reversal of 408157 is 751804.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-408157 is a prime.

It is a pancake number, because a pancake can be divided into 408157 parts by 903 straight cuts.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43 + ... + 904.

It is an arithmetic number, because the mean of its divisors is an integer number (102384).

2⁴⁰⁸¹⁵⁷ is an apocalyptic number.

It is an amenable number.

408157 is a deficient number, since it is larger than the sum of its proper divisors (1379).

408157 is an equidigital number, since it uses as much as digits as its factorization.

408157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 408157 is about 638.8716616035. The cubic root of 408157 is about 74.1781076208.

It can be divided in two parts, 408 and 157, that added together give a palindrome (565).

The spelling of 408157 in words is "four hundred eight thousand, one hundred fifty-seven".