137204540 has 48 divisors (see below), whose sum is σ = 315270144. Its totient is φ = 49742400.

The previous prime is 137204533. The next prime is 137204581. The reversal of 137204540 is 45402731.

It is a super-2 number, since 2×137204540² = 37650171593223200, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 94097 + ... + 95543.

It is an arithmetic number, because the mean of its divisors is an integer number (6568128).

Almost surely, 2^137204540 is an apocalyptic number.

137204540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 137204540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157635072).

137204540 is an abundant number, since it is smaller than the sum of its proper divisors (178065604).

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

137204540 is a wasteful number, since it uses less digits than its factorization.

137204540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1898 (or 1896 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 137204540 is about 11713.4341676555. The cubic root of 137204540 is about 515.7700986935.

The spelling of 137204540 in words is "one hundred thirty-seven million, two hundred four thousand, five hundred forty".