1252308457 has 16 divisors (see below), whose sum is σ = 1316044800. Its totient is φ = 1190146320.

The previous prime is 1252308443. The next prime is 1252308461. The reversal of 1252308457 is 7548032521.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1252308457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1252308157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 869544 + ... + 870982.

It is an arithmetic number, because the mean of its divisors is an integer number (82252800).

Almost surely, 2^1252308457 is an apocalyptic number.

It is an amenable number.

1252308457 is a deficient number, since it is larger than the sum of its proper divisors (63736343).

1252308457 is a wasteful number, since it uses less digits than its factorization.

1252308457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1956.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 1252308457 is about 35387.9705125909. The cubic root of 1252308457 is about 1077.8800598690.

The spelling of 1252308457 in words is "one billion, two hundred fifty-two million, three hundred eight thousand, four hundred fifty-seven".