1139272 has 16 divisors (see below), whose sum is σ = 2262060. Its totient is φ = 536064.

The previous prime is 1139269. The next prime is 1139273. The reversal of 1139272 is 2729311.

It can be written as a sum of positive squares in 2 ways, for example, as 1136356 + 2916 = 1066^2 + 54^2 .

It is not an unprimeable number, because it can be changed into a prime (1139273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4053 + ... + 4324.

2^1139272 is an apocalyptic number.

It is an amenable number.

1139272 is a deficient number, since it is larger than the sum of its proper divisors (1122788).

1139272 is a wasteful number, since it uses less digits than its factorization.

1139272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8400 (or 8396 counting only the distinct ones).

The product of its digits is 756, while the sum is 25.

The square root of 1139272 is about 1067.3668535232. The cubic root of 1139272 is about 104.4421510822.

The spelling of 1139272 in words is "one million, one hundred thirty-nine thousand, two hundred seventy-two".