1139649282 has 54 divisors (see below), whose sum is σ = 2526707547. Its totient is φ = 371241792.

The previous prime is 1139649239. The next prime is 1139649283. The reversal of 1139649282 is 2829469311.

It can be written as a sum of positive squares in 5 ways, for example, as 863125641 + 276523641 = 29379^2 + 16629^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=23871.

It is not an unprimeable number, because it can be changed into a prime (1139649283) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 10455444 + ... + 10455552.

Almost surely, 2^1139649282 is an apocalyptic number.

1139649282 is an abundant number, since it is smaller than the sum of its proper divisors (1387058265).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1139649282 is an equidigital number, since it uses as much as digits as its factorization.

1139649282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372 (or 187 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 1139649282 is about 33758.6919474082. The cubic root of 1139649282 is about 1044.5367885163.

The spelling of 1139649282 in words is "one billion, one hundred thirty-nine million, six hundred forty-nine thousand, two hundred eighty-two".