20125130 has 24 divisors (see below), whose sum is σ = 37533132. Its totient is φ = 7769216.

The previous prime is 20125117. The next prime is 20125153. The reversal of 20125130 is 3152102.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 3323329 + 16801801 = 1823^2 + 4099^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7214 + ... + 9606.

Almost surely, 2^20125130 is an apocalyptic number.

20125130 is a deficient number, since it is larger than the sum of its proper divisors (17408002).

20125130 is a wasteful number, since it uses less digits than its factorization.

20125130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2458 (or 2429 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 20125130 is about 4486.1041004417. The cubic root of 20125130 is about 272.0066769555.

Adding to 20125130 its reverse (3152102), we get a palindrome (23277232).

The spelling of 20125130 in words is "twenty million, one hundred twenty-five thousand, one hundred thirty".