1252515117 has 48 divisors (see below), whose sum is σ = 2036109312. Its totient is φ = 681579360.

The previous prime is 1252515107. The next prime is 1252515127. The reversal of 1252515117 is 7115152521.

It is an interprime number because it is at equal distance from previous prime (1252515107) and next prime (1252515127).

It is not a de Polignac number, because 1252515117 - 2⁴ = 1252515101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252515107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 915568 + ... + 916934.

It is an arithmetic number, because the mean of its divisors is an integer number (42418944).

Almost surely, 2^1252515117 is an apocalyptic number.

It is an amenable number.

1252515117 is a deficient number, since it is larger than the sum of its proper divisors (783594195).

1252515117 is a wasteful number, since it uses less digits than its factorization.

1252515117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1678 (or 1671 counting only the distinct ones).

The product of its digits is 3500, while the sum is 30.

The square root of 1252515117 is about 35390.8903109261. The cubic root of 1252515117 is about 1077.9393483614.

Adding to 1252515117 its reverse (7115152521), we get a palindrome (8367667638).

The spelling of 1252515117 in words is "one billion, two hundred fifty-two million, five hundred fifteen thousand, one hundred seventeen".