1253791292 has 12 divisors (see below), whose sum is σ = 2362914456. Its totient is φ = 578672880.

The previous prime is 1253791289. The next prime is 1253791339. The reversal of 1253791292 is 2921973521.

It is a congruent number.

It is an unprimeable number.

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, 12055634 + ... + 12055737.

It is an arithmetic number, because the mean of its divisors is an integer number (196909538).

Almost surely, 2^1253791292 is an apocalyptic number.

It is an amenable number.

1253791292 is a deficient number, since it is larger than the sum of its proper divisors (1109123164).

1253791292 is a wasteful number, since it uses less digits than its factorization.

1253791292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24111388 (or 24111386 counting only the distinct ones).

The product of its digits is 68040, while the sum is 41.

The square root of 1253791292 is about 35408.9154310041. The cubic root of 1253791292 is about 1078.3053245973.

The spelling of 1253791292 in words is "one billion, two hundred fifty-three million, seven hundred ninety-one thousand, two hundred ninety-two".