1136139239 has 4 divisors (see below), whose sum is σ = 1138216824. Its totient is φ = 1134061656.

The previous prime is 1136139209. The next prime is 1136139241. The reversal of 1136139239 is 9329316311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1136139239 - 2¹⁶ = 1136073703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1136139209) 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 3 ways as a sum of consecutive naturals, for example, 1037972 + ... + 1039065.

It is an arithmetic number, because the mean of its divisors is an integer number (284554206).

Almost surely, 2^1136139239 is an apocalyptic number.

1136139239 is a deficient number, since it is larger than the sum of its proper divisors (2077585).

1136139239 is an equidigital number, since it uses as much as digits as its factorization.

1136139239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2077584.

The product of its digits is 26244, while the sum is 38.

The square root of 1136139239 is about 33706.6646080564. The cubic root of 1136139239 is about 1043.4633180457.

The spelling of 1136139239 in words is "one billion, one hundred thirty-six million, one hundred thirty-nine thousand, two hundred thirty-nine".