1604235123 has 24 divisors (see below), whose sum is σ = 2343777072. Its totient is φ = 1057287168.

The previous prime is 1604235109. The next prime is 1604235133. The reversal of 1604235123 is 3215324061.

1604235123 is a `hidden beast` number, since 1 + 604 + 2 + 3 + 51 + 2 + 3 = 666.

It is not a de Polignac number, because 1604235123 - 2⁵ = 1604235091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1604235103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 438540 + ... + 442182.

It is an arithmetic number, because the mean of its divisors is an integer number (97657378).

Almost surely, 2^1604235123 is an apocalyptic number.

1604235123 is a deficient number, since it is larger than the sum of its proper divisors (739541949).

1604235123 is a wasteful number, since it uses less digits than its factorization.

1604235123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4195 (or 4192 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 1604235123 is about 40052.9040520160. The cubic root of 1604235123 is about 1170.6381506662.

Adding to 1604235123 its reverse (3215324061), we get a palindrome (4819559184).

The spelling of 1604235123 in words is "one billion, six hundred four million, two hundred thirty-five thousand, one hundred twenty-three".