137320164 has 24 divisors (see below), whose sum is σ = 356015520. Its totient is φ = 45773352.

The previous prime is 137320159. The next prime is 137320171. The reversal of 137320164 is 461023731.

137320164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 635634 + ... + 635849.

It is an arithmetic number, because the mean of its divisors is an integer number (14833980).

Almost surely, 2^137320164 is an apocalyptic number.

It is an amenable number.

137320164 is an abundant number, since it is smaller than the sum of its proper divisors (218695356).

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

137320164 is a wasteful number, since it uses less digits than its factorization.

137320164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271496 (or 1271488 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 137320164 is about 11718.3686577953. The cubic root of 137320164 is about 515.9149400083.

Adding to 137320164 its reverse (461023731), we get a palindrome (598343895).

The spelling of 137320164 in words is "one hundred thirty-seven million, three hundred twenty thousand, one hundred sixty-four".