1253916322 has 4 divisors (see below), whose sum is σ = 1880874486. Its totient is φ = 626958160.

The previous prime is 1253916317. The next prime is 1253916329. The reversal of 1253916322 is 2236193521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2236193521 = 127 ⋅17607823.

It can be written as a sum of positive squares in only one way, i.e., 867361401 + 386554921 = 29451^2 + 19661^2 .

It is a super-2 number, since 2×1253916322² = 3144612285156015368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1253916329) by changing a digit.

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 as a sum of consecutive naturals, namely, 313479079 + ... + 313479082.

Almost surely, 2^1253916322 is an apocalyptic number.

1253916322 is a deficient number, since it is larger than the sum of its proper divisors (626958164).

1253916322 is an equidigital number, since it uses as much as digits as its factorization.

1253916322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626958163.

The product of its digits is 19440, while the sum is 34.

The square root of 1253916322 is about 35410.6809028011. The cubic root of 1253916322 is about 1078.3411668289.

The spelling of 1253916322 in words is "one billion, two hundred fifty-three million, nine hundred sixteen thousand, three hundred twenty-two".