137749550 has 12 divisors (see below), whose sum is σ = 256214256. Its totient is φ = 55099800.

The previous prime is 137749543. The next prime is 137749567. The reversal of 137749550 is 55947731.

It is a junction number, because it is equal to n+sod(n) for n = 137749498 and 137749507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1377446 + ... + 1377545.

It is an arithmetic number, because the mean of its divisors is an integer number (21351188).

Almost surely, 2^137749550 is an apocalyptic number.

137749550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137749550 is a deficient number, since it is larger than the sum of its proper divisors (118464706).

137749550 is a wasteful number, since it uses less digits than its factorization.

137749550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755003 (or 2754998 counting only the distinct ones).

The product of its (nonzero) digits is 132300, while the sum is 41.

The square root of 137749550 is about 11736.6754236453. The cubic root of 137749550 is about 516.4521181115.

The spelling of 137749550 in words is "one hundred thirty-seven million, seven hundred forty-nine thousand, five hundred fifty".