137172400 has 60 divisors (see below), whose sum is σ = 346921000. Its totient is φ = 51978240.

The previous prime is 137172397. The next prime is 137172433. The reversal of 137172400 is 4271731.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 11 ways as a sum of consecutive naturals, for example, 1425 + ... + 16624.

Almost surely, 2^137172400 is an apocalyptic number.

137172400 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 137172400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173460500).

137172400 is an abundant number, since it is smaller than the sum of its proper divisors (209748600).

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

137172400 is a wasteful number, since it uses less digits than its factorization.

137172400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18086 (or 18075 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 137172400 is about 11712.0621583050. The cubic root of 137172400 is about 515.7298227048.

The spelling of 137172400 in words is "one hundred thirty-seven million, one hundred seventy-two thousand, four hundred".