1139812 has 12 divisors (see below), whose sum is σ = 2020480. Its totient is φ = 562536.

The previous prime is 1139807. The next prime is 1139819. The reversal of 1139812 is 2189311.

It is not an unprimeable number, because it can be changed into a prime (1139819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1488 + ... + 2119.

2^1139812 is an apocalyptic number.

It is an amenable number.

1139812 is a deficient number, since it is larger than the sum of its proper divisors (880668).

1139812 is a wasteful number, since it uses less digits than its factorization.

1139812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3690 (or 3688 counting only the distinct ones).

The product of its digits is 432, while the sum is 25.

The square root of 1139812 is about 1067.6197825069. The cubic root of 1139812 is about 104.4586498795.

The spelling of 1139812 in words is "one million, one hundred thirty-nine thousand, eight hundred twelve".