1252340513 has 8 divisors (see below), whose sum is σ = 1331054208. Its totient is φ = 1174187584.

The previous prime is 1252340503. The next prime is 1252340527. The reversal of 1252340513 is 3150432521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1252340513 - 2²⁴ = 1235563297 is a prime.

It is a super-2 number, since 2×1252340513² = 3136713521002206338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1252340503) 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 7 ways as a sum of consecutive naturals, for example, 135581 + ... + 144522.

It is an arithmetic number, because the mean of its divisors is an integer number (166381776).

Almost surely, 2^1252340513 is an apocalyptic number.

It is an amenable number.

1252340513 is a deficient number, since it is larger than the sum of its proper divisors (78713695).

1252340513 is a wasteful number, since it uses less digits than its factorization.

1252340513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280383.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1252340513 is about 35388.4234319643. The cubic root of 1252340513 is about 1077.8892568120.

The spelling of 1252340513 in words is "one billion, two hundred fifty-two million, three hundred forty thousand, five hundred thirteen".