1253897163 has 12 divisors (see below), whose sum is σ = 1812573048. Its totient is φ = 835290720.

The previous prime is 1253897081. The next prime is 1253897167. The reversal of 1253897163 is 3617983521.

1253897163 is a `hidden beast` number, since 12 + 538 + 97 + 16 + 3 = 666.

It is not a de Polignac number, because 1253897163 - 2²² = 1249702859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1253897167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40845 + ... + 64622.

It is an arithmetic number, because the mean of its divisors is an integer number (151047754).

Almost surely, 2^1253897163 is an apocalyptic number.

1253897163 is a deficient number, since it is larger than the sum of its proper divisors (558675885).

1253897163 is a wasteful number, since it uses less digits than its factorization.

1253897163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106794 (or 106791 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 1253897163 is about 35410.4103760462. The cubic root of 1253897163 is about 1078.3356746911.

The spelling of 1253897163 in words is "one billion, two hundred fifty-three million, eight hundred ninety-seven thousand, one hundred sixty-three".