137752500 has 60 divisors (see below), whose sum is σ = 401671424. Its totient is φ = 36732000.

The previous prime is 137752481. The next prime is 137752501. The reversal of 137752500 is 5257731.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137752501) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1684 + ... + 16683.

Almost surely, 2^137752500 is an apocalyptic number.

137752500 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 137752500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200835712).

137752500 is an abundant number, since it is smaller than the sum of its proper divisors (263918924).

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

137752500 is a wasteful number, since it uses less digits than its factorization.

137752500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18394 (or 18377 counting only the distinct ones).

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 137752500 is about 11736.8010974030. The cubic root of 137752500 is about 516.4558048093.

The spelling of 137752500 in words is "one hundred thirty-seven million, seven hundred fifty-two thousand, five hundred".