20137207 has 8 divisors (see below), whose sum is σ = 21301760. Its totient is φ = 18983160.

The previous prime is 20137199. The next prime is 20137217. The reversal of 20137207 is 70273102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20137207 - 2³ = 20137199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20137217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1498 + ... + 6520.

It is an arithmetic number, because the mean of its divisors is an integer number (2662720).

Almost surely, 2^20137207 is an apocalyptic number.

20137207 is a deficient number, since it is larger than the sum of its proper divisors (1164553).

20137207 is a wasteful number, since it uses less digits than its factorization.

20137207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5253.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 20137207 is about 4487.4499440105. The cubic root of 20137207 is about 272.0610760699.

The spelling of 20137207 in words is "twenty million, one hundred thirty-seven thousand, two hundred seven".