1242345115 has 96 divisors (see below), whose sum is σ = 1863106560. Its totient is φ = 790352640.

The previous prime is 1242345089. The next prime is 1242345127. The reversal of 1242345115 is 5115432421.

It is not a de Polignac number, because 1242345115 - 2⁹ = 1242344603 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9782182 + ... + 9782308.

It is an arithmetic number, because the mean of its divisors is an integer number (19407360).

Almost surely, 2^1242345115 is an apocalyptic number.

1242345115 is a deficient number, since it is larger than the sum of its proper divisors (620761445).

1242345115 is a wasteful number, since it uses less digits than its factorization.

1242345115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233 (or 222 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 1242345115 is about 35246.9163899482. The cubic root of 1242345115 is about 1075.0139143683.

Adding to 1242345115 its reverse (5115432421), we get a palindrome (6357777536).

The spelling of 1242345115 in words is "one billion, two hundred forty-two million, three hundred forty-five thousand, one hundred fifteen".