1252165446 has 64 divisors (see below), whose sum is σ = 3247810560. Its totient is φ = 350144640.

The previous prime is 1252165403. The next prime is 1252165459. The reversal of 1252165446 is 6445612521.

1252165446 is a `hidden beast` number, since 1 + 2 + 52 + 165 + 446 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1252165446.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17475 + ... + 53006.

It is an arithmetic number, because the mean of its divisors is an integer number (50747040).

Almost surely, 2^1252165446 is an apocalyptic number.

1252165446 is an abundant number, since it is smaller than the sum of its proper divisors (1995645114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1252165446 is a wasteful number, since it uses less digits than its factorization.

1252165446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70546 (or 70540 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 1252165446 is about 35385.9498388838. The cubic root of 1252165446 is about 1077.8390277595.

Adding to 1252165446 its reverse (6445612521), we get a palindrome (7697777967).

The spelling of 1252165446 in words is "one billion, two hundred fifty-two million, one hundred sixty-five thousand, four hundred forty-six".