20512124 has 24 divisors (see below), whose sum is σ = 36674400. Its totient is φ = 10036224.

The previous prime is 20512087. The next prime is 20512139. The reversal of 20512124 is 42121502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57932 + ... + 58284.

It is an arithmetic number, because the mean of its divisors is an integer number (1528100).

Almost surely, 2^20512124 is an apocalyptic number.

It is an amenable number.

20512124 is a deficient number, since it is larger than the sum of its proper divisors (16162276).

20512124 is a wasteful number, since it uses less digits than its factorization.

20512124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629 (or 627 counting only the distinct ones).

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

The square root of 20512124 is about 4529.0312429923. The cubic root of 20512124 is about 273.7391269147.

Adding to 20512124 its reverse (42121502), we get a palindrome (62633626).

The spelling of 20512124 in words is "twenty million, five hundred twelve thousand, one hundred twenty-four".