137688550 has 24 divisors (see below), whose sum is σ = 256680000. Its totient is φ = 54950880.

The previous prime is 137688533. The next prime is 137688589. The reversal of 137688550 is 55886731.

137688550 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×137688550² = 37916273602205000, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 137688497 and 137688506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21076 + ... + 26824.

It is an arithmetic number, because the mean of its divisors is an integer number (10695000).

Almost surely, 2^137688550 is an apocalyptic number.

137688550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137688550 is a deficient number, since it is larger than the sum of its proper divisors (118991450).

137688550 is a wasteful number, since it uses less digits than its factorization.

137688550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6240 (or 6235 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 43.

The square root of 137688550 is about 11734.0764442712. The cubic root of 137688550 is about 516.3758729002.

The spelling of 137688550 in words is "one hundred thirty-seven million, six hundred eighty-eight thousand, five hundred fifty".