1139699 has 6 divisors (see below), whose sum is σ = 1252860. Its totient is φ = 1035980.

The previous prime is 1139687. The next prime is 1139713. The reversal of 1139699 is 9969311.

It is not a de Polignac number, because 1139699 - 2⁴ = 1139683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1139669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4589 + ... + 4830.

It is an arithmetic number, because the mean of its divisors is an integer number (208810).

2^1139699 is an apocalyptic number.

1139699 is a deficient number, since it is larger than the sum of its proper divisors (113161).

1139699 is an equidigital number, since it uses as much as digits as its factorization.

1139699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9441 (or 9430 counting only the distinct ones).

The product of its digits is 13122, while the sum is 38.

The square root of 1139699 is about 1067.5668597329. The cubic root of 1139699 is about 104.4551977846.

The spelling of 1139699 in words is "one million, one hundred thirty-nine thousand, six hundred ninety-nine".