1252322133 has 4 divisors (see below), whose sum is σ = 1669762848. Its totient is φ = 834881420.

The previous prime is 1252322087. The next prime is 1252322143. The reversal of 1252322133 is 3312232521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1252322133 - 2⁹ = 1252321621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252322143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208720353 + ... + 208720358.

It is an arithmetic number, because the mean of its divisors is an integer number (417440712).

Almost surely, 2^1252322133 is an apocalyptic number.

It is an amenable number.

1252322133 is a deficient number, since it is larger than the sum of its proper divisors (417440715).

1252322133 is an equidigital number, since it uses as much as digits as its factorization.

1252322133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417440714.

The product of its digits is 2160, while the sum is 24.

The square root of 1252322133 is about 35388.1637415676. The cubic root of 1252322133 is about 1077.8839835653.

Adding to 1252322133 its reverse (3312232521), we get a palindrome (4564554654).

The spelling of 1252322133 in words is "one billion, two hundred fifty-two million, three hundred twenty-two thousand, one hundred thirty-three".