137749020 has 24 divisors (see below), whose sum is σ = 385697424. Its totient is φ = 36733056.

The previous prime is 137749013. The next prime is 137749033. The reversal of 137749020 is 20947731.

It is a congruent number.

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, 1147849 + ... + 1147968.

It is an arithmetic number, because the mean of its divisors is an integer number (16070726).

Almost surely, 2^137749020 is an apocalyptic number.

137749020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137749020 is an abundant number, since it is smaller than the sum of its proper divisors (247948404).

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

137749020 is a wasteful number, since it uses less digits than its factorization.

137749020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295829 (or 2295827 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 137749020 is about 11736.6528448276. The cubic root of 137749020 is about 516.4514557501.

The spelling of 137749020 in words is "one hundred thirty-seven million, seven hundred forty-nine thousand, twenty".