137661500 has 24 divisors (see below), whose sum is σ = 300653808. Its totient is φ = 55064400.

The previous prime is 137661473. The next prime is 137661553. The reversal of 137661500 is 5166731.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 137162 + ... + 138161.

It is an arithmetic number, because the mean of its divisors is an integer number (12527242).

Almost surely, 2^137661500 is an apocalyptic number.

137661500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

137661500 is an abundant number, since it is smaller than the sum of its proper divisors (162992308).

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

137661500 is a wasteful number, since it uses less digits than its factorization.

137661500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275342 (or 275330 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 137661500 is about 11732.9237617910. The cubic root of 137661500 is about 516.3420553166.

The spelling of 137661500 in words is "one hundred thirty-seven million, six hundred sixty-one thousand, five hundred".