1242515015 has 8 divisors (see below), whose sum is σ = 1704020640. Its totient is φ = 852010272.

The previous prime is 1242514991. The next prime is 1242515069. The reversal of 1242515015 is 5105152421.

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 1242515015 - 2⁸ = 1242514759 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17750180 + ... + 17750249.

It is an arithmetic number, because the mean of its divisors is an integer number (213002580).

Almost surely, 2^1242515015 is an apocalyptic number.

1242515015 is a deficient number, since it is larger than the sum of its proper divisors (461505625).

1242515015 is an equidigital number, since it uses as much as digits as its factorization.

1242515015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35500441.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 1242515015 is about 35249.3264474656. The cubic root of 1242515015 is about 1075.0629175362.

Adding to 1242515015 its reverse (5105152421), we get a palindrome (6347667436).

The spelling of 1242515015 in words is "one billion, two hundred forty-two million, five hundred fifteen thousand, fifteen".