1253733147 has 10 divisors (see below), whose sum is σ = 1872860748. Its totient is φ = 835822044.

The previous prime is 1253733113. The next prime is 1253733149. The reversal of 1253733147 is 7413373521.

It is not a de Polignac number, because 1253733147 - 2¹¹ = 1253731099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1253733149) 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 in 9 ways as a sum of consecutive naturals, for example, 7739013 + ... + 7739174.

Almost surely, 2^1253733147 is an apocalyptic number.

1253733147 is a deficient number, since it is larger than the sum of its proper divisors (619127601).

1253733147 is an equidigital number, since it uses as much as digits as its factorization.

1253733147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15478199 (or 15478190 counting only the distinct ones).

The product of its digits is 52920, while the sum is 36.

The square root of 1253733147 is about 35408.0943712028. The cubic root of 1253733147 is about 1078.2886554135.

The spelling of 1253733147 in words is "one billion, two hundred fifty-three million, seven hundred thirty-three thousand, one hundred forty-seven".