137155664 has 10 divisors (see below), whose sum is σ = 265739130. Its totient is φ = 68577824.

The previous prime is 137155651. The next prime is 137155673. The reversal of 137155664 is 466551731.

It can be written as a sum of positive squares in only one way, i.e., 137077264 + 78400 = 11708^2 + 280^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4286099 + ... + 4286130.

It is an arithmetic number, because the mean of its divisors is an integer number (26573913).

Almost surely, 2^137155664 is an apocalyptic number.

It is an amenable number.

137155664 is a deficient number, since it is larger than the sum of its proper divisors (128583466).

137155664 is an equidigital number, since it uses as much as digits as its factorization.

137155664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8572237 (or 8572231 counting only the distinct ones).

The product of its digits is 75600, while the sum is 38.

The square root of 137155664 is about 11711.3476594284. The cubic root of 137155664 is about 515.7088476268.

The spelling of 137155664 in words is "one hundred thirty-seven million, one hundred fifty-five thousand, six hundred sixty-four".