1604157 has 16 divisors (see below), whose sum is σ = 2260992. Its totient is φ = 1010160.

The previous prime is 1604149. The next prime is 1604167. The reversal of 1604157 is 7514061.

It is not a de Polignac number, because 1604157 - 2³ = 1604149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4188 + ... + 4554.

It is an arithmetic number, because the mean of its divisors is an integer number (141312).

2^1604157 is an apocalyptic number.

It is an amenable number.

1604157 is a deficient number, since it is larger than the sum of its proper divisors (656835).

1604157 is a wasteful number, since it uses less digits than its factorization.

1604157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 1604157 is about 1266.5531966720. The cubic root of 1604157 is about 117.0619147789.

The spelling of 1604157 in words is "one million, six hundred four thousand, one hundred fifty-seven".