1252322851 has 8 divisors (see below), whose sum is σ = 1419637520. Its totient is φ = 1095148512.

The previous prime is 1252322821. The next prime is 1252322857. The reversal of 1252322851 is 1582232521.

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

It is a cyclic number.

It is not a de Polignac number, because 1252322851 - 2⁷ = 1252322723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1252322857) 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, 2534820 + ... + 2535313.

It is an arithmetic number, because the mean of its divisors is an integer number (177454690).

Almost surely, 2^1252322851 is an apocalyptic number.

1252322851 is a deficient number, since it is larger than the sum of its proper divisors (167314669).

1252322851 is a wasteful number, since it uses less digits than its factorization.

1252322851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5070165.

The product of its digits is 9600, while the sum is 31.

The square root of 1252322851 is about 35388.1738862010. The cubic root of 1252322851 is about 1077.8841895614.

The spelling of 1252322851 in words is "one billion, two hundred fifty-two million, three hundred twenty-two thousand, eight hundred fifty-one".