1139162921 has 12 divisors (see below), whose sum is σ = 1273328640. Its totient is φ = 1017609840.

The previous prime is 1139162909. The next prime is 1139162933. The reversal of 1139162921 is 1292619311.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1139162909) and next prime (1139162933).

It is not a de Polignac number, because 1139162921 - 2¹⁴ = 1139146537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1139162971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103481 + ... + 113958.

It is an arithmetic number, because the mean of its divisors is an integer number (106110720).

Almost surely, 2^1139162921 is an apocalyptic number.

It is an amenable number.

1139162921 is a deficient number, since it is larger than the sum of its proper divisors (134165719).

1139162921 is a wasteful number, since it uses less digits than its factorization.

1139162921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217496 (or 217483 counting only the distinct ones).

The product of its digits is 5832, while the sum is 35.

The square root of 1139162921 is about 33751.4876857302. The cubic root of 1139162921 is about 1044.3881772284.

The spelling of 1139162921 in words is "one billion, one hundred thirty-nine million, one hundred sixty-two thousand, nine hundred twenty-one".