1137725 has 12 divisors (see below), whose sum is σ = 1494324. Its totient is φ = 856320.

The previous prime is 1137707. The next prime is 1137733. The reversal of 1137725 is 5277311.

It can be written as a sum of positive squares in 6 ways, for example, as 111556 + 1026169 = 334^2 + 1013^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1137725 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1137694 and 1137703.

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 11 ways as a sum of consecutive naturals, for example, 914 + ... + 1763.

It is an arithmetic number, because the mean of its divisors is an integer number (124527).

2^1137725 is an apocalyptic number.

It is an amenable number.

1137725 is a deficient number, since it is larger than the sum of its proper divisors (356599).

1137725 is a wasteful number, since it uses less digits than its factorization.

1137725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2704 (or 2699 counting only the distinct ones).

The product of its digits is 1470, while the sum is 26.

The square root of 1137725 is about 1066.6419267964. The cubic root of 1137725 is about 104.3948562030.

The spelling of 1137725 in words is "one million, one hundred thirty-seven thousand, seven hundred twenty-five".