20125124 has 6 divisors (see below), whose sum is σ = 35218974. Its totient is φ = 10062560.

The previous prime is 20125117. The next prime is 20125153. The reversal of 20125124 is 42152102.

It can be written as a sum of positive squares in only one way, i.e., 19802500 + 322624 = 4450^2 + 568^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2515637 + ... + 2515644.

It is an arithmetic number, because the mean of its divisors is an integer number (5869829).

Almost surely, 2^20125124 is an apocalyptic number.

It is an amenable number.

20125124 is a deficient number, since it is larger than the sum of its proper divisors (15093850).

20125124 is a wasteful number, since it uses less digits than its factorization.

20125124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5031285 (or 5031283 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 20125124 is about 4486.1034317100. The cubic root of 20125124 is about 272.0066499239.

Adding to 20125124 its reverse (42152102), we get a palindrome (62277226).

The spelling of 20125124 in words is "twenty million, one hundred twenty-five thousand, one hundred twenty-four".