1253299722 has 16 divisors (see below), whose sum is σ = 2544012192. Its totient is φ = 411531120.

The previous prime is 1253299703. The next prime is 1253299781. The reversal of 1253299722 is 2279923521.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1558429 + ... + 1559232.

It is an arithmetic number, because the mean of its divisors is an integer number (159000762).

Almost surely, 2^1253299722 is an apocalyptic number.

1253299722 is an abundant number, since it is smaller than the sum of its proper divisors (1290712470).

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

1253299722 is a wasteful number, since it uses less digits than its factorization.

1253299722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3117733.

The product of its digits is 136080, while the sum is 42.

The square root of 1253299722 is about 35401.9734195708. The cubic root of 1253299722 is about 1078.1643835863.

The spelling of 1253299722 in words is "one billion, two hundred fifty-three million, two hundred ninety-nine thousand, seven hundred twenty-two".