1252135066 has 32 divisors (see below), whose sum is σ = 2314222848. Its totient is φ = 494795520.

The previous prime is 1252135057. The next prime is 1252135067. The reversal of 1252135066 is 6605312521.

It is not an unprimeable number, because it can be changed into a prime (1252135067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184306 + ... + 190978.

It is an arithmetic number, because the mean of its divisors is an integer number (72319464).

Almost surely, 2^1252135066 is an apocalyptic number.

1252135066 is a deficient number, since it is larger than the sum of its proper divisors (1062087782).

1252135066 is a wasteful number, since it uses less digits than its factorization.

1252135066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7726.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 1252135066 is about 35385.5205698602. The cubic root of 1252135066 is about 1077.8303108564.

Adding to 1252135066 its reverse (6605312521), we get a palindrome (7857447587).

The spelling of 1252135066 in words is "one billion, two hundred fifty-two million, one hundred thirty-five thousand, sixty-six".