1139005899 has 12 divisors (see below), whose sum is σ = 1742009256. Its totient is φ = 714670272.

The previous prime is 1139005897. The next prime is 1139005909. The reversal of 1139005899 is 9985009311.

It is not a de Polignac number, because 1139005899 - 2¹ = 1139005897 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1139005897) 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, 3722089 + ... + 3722394.

It is an arithmetic number, because the mean of its divisors is an integer number (145167438).

Almost surely, 2^1139005899 is an apocalyptic number.

1139005899 is a deficient number, since it is larger than the sum of its proper divisors (603003357).

1139005899 is a wasteful number, since it uses less digits than its factorization.

1139005899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7444506 (or 7444503 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 45.

The square root of 1139005899 is about 33749.1614562495. The cubic root of 1139005899 is about 1044.3401889343.

The spelling of 1139005899 in words is "one billion, one hundred thirty-nine million, five thousand, eight hundred ninety-nine".