2604155 has 16 divisors (see below), whose sum is σ = 3297024. Its totient is φ = 1971840.

The previous prime is 2604139. The next prime is 2604163. The reversal of 2604155 is 5514062.

2604155 = 280² + 281² + ... + 309².

It is not a de Polignac number, because 2604155 - 2⁴ = 2604139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2604155.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8057 + ... + 8373.

It is an arithmetic number, because the mean of its divisors is an integer number (206064).

2^2604155 is an apocalyptic number.

2604155 is a deficient number, since it is larger than the sum of its proper divisors (692869).

2604155 is a wasteful number, since it uses less digits than its factorization.

2604155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2604155 is about 1613.7394461313. The cubic root of 2604155 is about 137.5800965837.

The spelling of 2604155 in words is "two million, six hundred four thousand, one hundred fifty-five".