2104125125 has 16 divisors (see below), whose sum is σ = 2690002224. Its totient is φ = 1642240000.

The previous prime is 2104125119. The next prime is 2104125157. The reversal of 2104125125 is 5215214012.

It can be written as a sum of positive squares in 8 ways, for example, as 562306369 + 1541818756 = 23713^2 + 39266^2 .

It is not a de Polignac number, because 2104125125 - 2²² = 2099930821 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2104125125.

It is a congruent number.

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, 200156 + ... + 210405.

It is an arithmetic number, because the mean of its divisors is an integer number (168125139).

Almost surely, 2^2104125125 is an apocalyptic number.

2104125125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2104125125 is a deficient number, since it is larger than the sum of its proper divisors (585877099).

2104125125 is an equidigital number, since it uses as much as digits as its factorization.

2104125125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410617 (or 410607 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 2104125125 is about 45870.7436717566. The cubic root of 2104125125 is about 1281.4171164131.

Adding to 2104125125 its reverse (5215214012), we get a palindrome (7319339137).

The spelling of 2104125125 in words is "two billion, one hundred four million, one hundred twenty-five thousand, one hundred twenty-five".