1139572906 has 8 divisors (see below), whose sum is σ = 1709515620. Its totient is φ = 569734368.

The previous prime is 1139572877. The next prime is 1139572909. The reversal of 1139572906 is 6092759311.

It can be written as a sum of positive squares in 2 ways, for example, as 878588881 + 260984025 = 29641^2 + 16155^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1139572909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13030 + ... + 49486.

Almost surely, 2^1139572906 is an apocalyptic number.

1139572906 is a deficient number, since it is larger than the sum of its proper divisors (569942714).

1139572906 is a wasteful number, since it uses less digits than its factorization.

1139572906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52088.

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 1139572906 is about 33757.5607234883. The cubic root of 1139572906 is about 1044.5134540498.

The spelling of 1139572906 in words is "one billion, one hundred thirty-nine million, five hundred seventy-two thousand, nine hundred six".