1239609152 has 28 divisors (see below), whose sum is σ = 2539203456. Its totient is φ = 599809920.

The previous prime is 1239609139. The next prime is 1239609157. The reversal of 1239609152 is 2519069321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1239609157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310418 + ... + 314385.

Almost surely, 2^1239609152 is an apocalyptic number.

It is an amenable number.

1239609152 is an abundant number, since it is smaller than the sum of its proper divisors (1299594304).

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

1239609152 is an equidigital number, since it uses as much as digits as its factorization.

1239609152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624846 (or 624836 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 1239609152 is about 35208.0836172604. The cubic root of 1239609152 is about 1074.2241821124.

The spelling of 1239609152 in words is "one billion, two hundred thirty-nine million, six hundred nine thousand, one hundred fifty-two".