137655772 has 12 divisors (see below), whose sum is σ = 244847176. Its totient is φ = 67699440.

The previous prime is 137655743. The next prime is 137655781. The reversal of 137655772 is 277556731.

137655772 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×137655772² = 37898223129831968, which contains 22 as substring.

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, 281838 + ... + 282325.

Almost surely, 2^137655772 is an apocalyptic number.

It is an amenable number.

137655772 is a deficient number, since it is larger than the sum of its proper divisors (107191404).

137655772 is a wasteful number, since it uses less digits than its factorization.

137655772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564228 (or 564226 counting only the distinct ones).

The product of its digits is 308700, while the sum is 43.

The square root of 137655772 is about 11732.6796598220. The cubic root of 137655772 is about 516.3348936718.

The spelling of 137655772 in words is "one hundred thirty-seven million, six hundred fifty-five thousand, seven hundred seventy-two".