1139988699 has 12 divisors (see below), whose sum is σ = 1699768512. Its totient is φ = 735476400.

The previous prime is 1139988697. The next prime is 1139988701. The reversal of 1139988699 is 9968899311.

It is an interprime number because it is at equal distance from previous prime (1139988697) and next prime (1139988701).

It is not a de Polignac number, because 1139988699 - 2¹ = 1139988697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1139988697) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2042712 + ... + 2043269.

It is an arithmetic number, because the mean of its divisors is an integer number (141647376).

Almost surely, 2^1139988699 is an apocalyptic number.

1139988699 is a deficient number, since it is larger than the sum of its proper divisors (559779813).

1139988699 is a wasteful number, since it uses less digits than its factorization.

1139988699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4086018 (or 4086015 counting only the distinct ones).

The product of its digits is 7558272, while the sum is 63.

The square root of 1139988699 is about 33763.7186784868. The cubic root of 1139988699 is about 1044.6404749042.

The spelling of 1139988699 in words is "one billion, one hundred thirty-nine million, nine hundred eighty-eight thousand, six hundred ninety-nine".