1139908634 has 4 divisors (see below), whose sum is σ = 1709862954. Its totient is φ = 569954316.

The previous prime is 1139908619. The next prime is 1139908639. The reversal of 1139908634 is 4368099311.

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

It can be written as a sum of positive squares in only one way, i.e., 1023808009 + 116100625 = 31997^2 + 10775^2 .

It is not an unprimeable number, because it can be changed into a prime (1139908639) 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 as a sum of consecutive naturals, namely, 284977157 + ... + 284977160.

Almost surely, 2^1139908634 is an apocalyptic number.

1139908634 is a deficient number, since it is larger than the sum of its proper divisors (569954320).

1139908634 is an equidigital number, since it uses as much as digits as its factorization.

1139908634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569954319.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 1139908634 is about 33762.5329914685. The cubic root of 1139908634 is about 1044.6160182004.

The spelling of 1139908634 in words is "one billion, one hundred thirty-nine million, nine hundred eight thousand, six hundred thirty-four".