1252469157 has 8 divisors (see below), whose sum is σ = 1670123520. Its totient is φ = 834897120.

The previous prime is 1252469149. The next prime is 1252469159. The reversal of 1252469157 is 7519642521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1252469157 - 2³ = 1252469149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252469159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42844 + ... + 65882.

It is an arithmetic number, because the mean of its divisors is an integer number (208765440).

Almost surely, 2^1252469157 is an apocalyptic number.

It is an amenable number.

1252469157 is a deficient number, since it is larger than the sum of its proper divisors (417654363).

1252469157 is a wasteful number, since it uses less digits than its factorization.

1252469157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41163.

The product of its digits is 151200, while the sum is 42.

The square root of 1252469157 is about 35390.2409853338. The cubic root of 1252469157 is about 1077.9261635043.

The spelling of 1252469157 in words is "one billion, two hundred fifty-two million, four hundred sixty-nine thousand, one hundred fifty-seven".