137740490 has 16 divisors (see below), whose sum is σ = 248429160. Its totient is φ = 54985920.

The previous prime is 137740489. The next prime is 137740531. The reversal of 137740490 is 94047731.

It can be written as a sum of positive squares in 4 ways, for example, as 104919049 + 32821441 = 10243^2 + 5729^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 137740490.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8441 + ... + 18620.

Almost surely, 2^137740490 is an apocalyptic number.

137740490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137740490 is a deficient number, since it is larger than the sum of its proper divisors (110688670).

137740490 is a wasteful number, since it uses less digits than its factorization.

137740490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27577.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 137740490 is about 11736.2894476917. The cubic root of 137740490 is about 516.4407952463.

The spelling of 137740490 in words is "one hundred thirty-seven million, seven hundred forty thousand, four hundred ninety".