137818540 has 24 divisors (see below), whose sum is σ = 292288752. Its totient is φ = 54580800.

The previous prime is 137818481. The next prime is 137818559. The reversal of 137818540 is 45818731.

137818540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 137818540.

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, 32094 + ... + 36133.

It is an arithmetic number, because the mean of its divisors is an integer number (12178698).

Almost surely, 2^137818540 is an apocalyptic number.

137818540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137818540 is an abundant number, since it is smaller than the sum of its proper divisors (154470212).

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

137818540 is a wasteful number, since it uses less digits than its factorization.

137818540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68337 (or 68335 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 137818540 is about 11739.6141333521. The cubic root of 137818540 is about 516.5383230755.

The spelling of 137818540 in words is "one hundred thirty-seven million, eight hundred eighteen thousand, five hundred forty".