20137712 has 20 divisors (see below), whose sum is σ = 44590896. Its totient is φ = 8630400.

The previous prime is 20137697. The next prime is 20137723. The reversal of 20137712 is 21773102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89789 + ... + 90012.

Almost surely, 2^20137712 is an apocalyptic number.

It is an amenable number.

20137712 is an abundant number, since it is smaller than the sum of its proper divisors (24453184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20137712 is a wasteful number, since it uses less digits than its factorization.

20137712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179816 (or 179810 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 20137712 is about 4487.5062116949. The cubic root of 20137712 is about 272.0633502961.

The spelling of 20137712 in words is "twenty million, one hundred thirty-seven thousand, seven hundred twelve".