1137872 has 30 divisors (see below), whose sum is σ = 2338578. Its totient is φ = 536256.

The previous prime is 1137869. The next prime is 1137881. The reversal of 1137872 is 2787311.

It can be written as a sum of positive squares in only one way, i.e., 1132096 + 5776 = 1064^2 + 76^2 .

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 polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5678 + ... + 5874.

2^1137872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1137872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1169289).

1137872 is an abundant number, since it is smaller than the sum of its proper divisors (1200706).

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

1137872 is a wasteful number, since it uses less digits than its factorization.

1137872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 218 counting only the distinct ones).

The product of its digits is 2352, while the sum is 29.

The square root of 1137872 is about 1066.7108324190. The cubic root of 1137872 is about 104.3993521292.

The spelling of 1137872 in words is "one million, one hundred thirty-seven thousand, eight hundred seventy-two".