101604 has 12 divisors (see below), whose sum is σ = 237104. Its totient is φ = 33864.

The previous prime is 101603. The next prime is 101611. The reversal of 101604 is 406101.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 8467 = 101604 / (1 + 0 + 1 + 6 + 0 + 4).

It is a self number, because there is not a number n which added to its sum of digits gives 101604.

It is not an unprimeable number, because it can be changed into a prime (101603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4222 + ... + 4245.

2¹⁰¹⁶⁰⁴ is an apocalyptic number.

It is an amenable number.

101604 is an abundant number, since it is smaller than the sum of its proper divisors (135500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101604 is a wasteful number, since it uses less digits than its factorization.

101604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8474 (or 8472 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 101604 is about 318.7538235065. The cubic root of 101604 is about 46.6627434344.

Adding to 101604 its reverse (406101), we get a palindrome (507705).

The spelling of 101604 in words is "one hundred one thousand, six hundred four".