1252961801 has 12 divisors (see below), whose sum is σ = 1569645252. Its totient is φ = 991353888.

The previous prime is 1252961789. The next prime is 1252961881. The reversal of 1252961801 is 1081692521.

It can be written as a sum of positive squares in 2 ways, for example, as 836597776 + 416364025 = 28924^2 + 20405^2 .

It is not a de Polignac number, because 1252961801 - 2⁶ = 1252961737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1252961881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 982850 + ... + 984123.

It is an arithmetic number, because the mean of its divisors is an integer number (130803771).

Almost surely, 2^1252961801 is an apocalyptic number.

It is an amenable number.

1252961801 is a deficient number, since it is larger than the sum of its proper divisors (316683451).

1252961801 is a wasteful number, since it uses less digits than its factorization.

1252961801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1967000 (or 1966993 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 35.

The square root of 1252961801 is about 35397.2004683986. The cubic root of 1252961801 is about 1078.0674748342.

The spelling of 1252961801 in words is "one billion, two hundred fifty-two million, nine hundred sixty-one thousand, eight hundred one".