1139709974 has 24 divisors (see below), whose sum is σ = 1858369392. Its totient is φ = 523979040.

The previous prime is 1139709973. The next prime is 1139709997. The reversal of 1139709974 is 4799079311.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139709973) 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, 82484 + ... + 95304.

It is an arithmetic number, because the mean of its divisors is an integer number (77432058).

Almost surely, 2^1139709974 is an apocalyptic number.

1139709974 is a deficient number, since it is larger than the sum of its proper divisors (718659418).

1139709974 is a wasteful number, since it uses less digits than its factorization.

1139709974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13112 (or 13099 counting only the distinct ones).

The product of its (nonzero) digits is 428652, while the sum is 50.

The square root of 1139709974 is about 33759.5908446770. The cubic root of 1139709974 is about 1044.5553304492. Note that the first 3 decimals are identical.

The spelling of 1139709974 in words is "one billion, one hundred thirty-nine million, seven hundred nine thousand, nine hundred seventy-four".