1252015203 has 16 divisors (see below), whose sum is σ = 1758614400. Its totient is φ = 790116480.

The previous prime is 1252015159. The next prime is 1252015217. The reversal of 1252015203 is 3025102521.

It is not a de Polignac number, because 1252015203 - 2¹³ = 1252007011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1252015203.

It is not an unprimeable number, because it can be changed into a prime (1252015283) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 69508 + ... + 85646.

It is an arithmetic number, because the mean of its divisors is an integer number (109913400).

Almost surely, 2^1252015203 is an apocalyptic number.

1252015203 is a deficient number, since it is larger than the sum of its proper divisors (506599197).

1252015203 is a wasteful number, since it uses less digits than its factorization.

1252015203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17522.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1252015203 is about 35383.8268563478. The cubic root of 1252015203 is about 1077.7959173098.

Adding to 1252015203 its reverse (3025102521), we get a palindrome (4277117724).

The spelling of 1252015203 in words is "one billion, two hundred fifty-two million, fifteen thousand, two hundred three".