1139536929 has 16 divisors (see below), whose sum is σ = 1535557760. Its totient is φ = 751645440.

The previous prime is 1139536927. The next prime is 1139536961. The reversal of 1139536929 is 9296359311.

It is not a de Polignac number, because 1139536929 - 2¹ = 1139536927 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1139536921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108492 + ... + 118530.

It is an arithmetic number, because the mean of its divisors is an integer number (95972360).

Almost surely, 2^1139536929 is an apocalyptic number.

It is an amenable number.

1139536929 is a deficient number, since it is larger than the sum of its proper divisors (396020831).

1139536929 is a wasteful number, since it uses less digits than its factorization.

1139536929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10440.

The product of its digits is 393660, while the sum is 48.

The square root of 1139536929 is about 33757.0278460649. The cubic root of 1139536929 is about 1044.5024619621.

The spelling of 1139536929 in words is "one billion, one hundred thirty-nine million, five hundred thirty-six thousand, nine hundred twenty-nine".