137741840 has 20 divisors (see below), whose sum is σ = 320249964. Its totient is φ = 55096704.

The previous prime is 137741839. The next prime is 137741869. The reversal of 137741840 is 48147731.

It can be written as a sum of positive squares in 2 ways, for example, as 95335696 + 42406144 = 9764^2 + 6512^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 137741840.

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, 860807 + ... + 860966.

Almost surely, 2^137741840 is an apocalyptic number.

137741840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137741840 is an abundant number, since it is smaller than the sum of its proper divisors (182508124).

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

137741840 is a wasteful number, since it uses less digits than its factorization.

137741840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721786 (or 1721780 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 137741840 is about 11736.3469614697. The cubic root of 137741840 is about 516.4424824596.

The spelling of 137741840 in words is "one hundred thirty-seven million, seven hundred forty-one thousand, eight hundred forty".