1139694171 has 64 divisors (see below), whose sum is σ = 1992729600. Its totient is φ = 562060800.

The previous prime is 1139694109. The next prime is 1139694173. The reversal of 1139694171 is 1714969311.

It is not a de Polignac number, because 1139694171 - 2¹⁴ = 1139677787 is a prime.

It is a super-2 number, since 2×1139694171² = 2597805606822754482, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1139694173) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 407245 + ... + 410033.

It is an arithmetic number, because the mean of its divisors is an integer number (31136400).

Almost surely, 2^1139694171 is an apocalyptic number.

1139694171 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1139694171 is a deficient number, since it is larger than the sum of its proper divisors (853035429).

1139694171 is a wasteful number, since it uses less digits than its factorization.

1139694171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2900.

The product of its digits is 40824, while the sum is 42.

The square root of 1139694171 is about 33759.3567918585. The cubic root of 1139694171 is about 1044.5505025589.

The spelling of 1139694171 in words is "one billion, one hundred thirty-nine million, six hundred ninety-four thousand, one hundred seventy-one".