620610137 has 32 divisors (see below), whose sum is σ = 747187200. Its totient is φ = 514993920.

The previous prime is 620610131. The next prime is 620610161. The reversal of 620610137 is 731016026.

It is not a de Polignac number, because 620610137 - 2²⁸ = 352174681 is a prime.

It is a super-3 number, since 3×620610137³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (620610131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2208437 + ... + 2208717.

It is an arithmetic number, because the mean of its divisors is an integer number (23349600).

Almost surely, 2^620610137 is an apocalyptic number.

It is an amenable number.

620610137 is a deficient number, since it is larger than the sum of its proper divisors (126577063).

620610137 is a wasteful number, since it uses less digits than its factorization.

620610137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 620610137 is about 24912.0480290160. The cubic root of 620610137 is about 852.9815189779.

The spelling of 620610137 in words is "six hundred twenty million, six hundred ten thousand, one hundred thirty-seven".