1252975671 has 24 divisors (see below), whose sum is σ = 1830501504. Its totient is φ = 825820560.

The previous prime is 1252975657. The next prime is 1252975687. The reversal of 1252975671 is 1765792521.

1252975671 is a `hidden beast` number, since 1 + 2 + 529 + 7 + 56 + 71 = 666.

It is not a de Polignac number, because 1252975671 - 2²⁹ = 716104759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252975631) 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 23 ways as a sum of consecutive naturals, for example, 622056 + ... + 624066.

It is an arithmetic number, because the mean of its divisors is an integer number (76270896).

Almost surely, 2^1252975671 is an apocalyptic number.

1252975671 is a deficient number, since it is larger than the sum of its proper divisors (577525833).

1252975671 is a wasteful number, since it uses less digits than its factorization.

1252975671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2771 (or 2768 counting only the distinct ones).

The product of its digits is 264600, while the sum is 45.

The square root of 1252975671 is about 35397.3963873051. The cubic root of 1252975671 is about 1078.0714528062.

The spelling of 1252975671 in words is "one billion, two hundred fifty-two million, nine hundred seventy-five thousand, six hundred seventy-one".