1242452015 has 32 divisors (see below), whose sum is σ = 1734359040. Its totient is φ = 836884224.

The previous prime is 1242451997. The next prime is 1242452051. The reversal of 1242452015 is 5102542421.

It is a cyclic number.

It is not a de Polignac number, because 1242452015 - 2¹⁰ = 1242450991 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 506522 + ... + 508968.

It is an arithmetic number, because the mean of its divisors is an integer number (54198720).

Almost surely, 2^1242452015 is an apocalyptic number.

1242452015 is a deficient number, since it is larger than the sum of its proper divisors (491907025).

1242452015 is a wasteful number, since it uses less digits than its factorization.

1242452015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2711.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1242452015 is about 35248.4328020410. The cubic root of 1242452015 is about 1075.0447473712.

Adding to 1242452015 its reverse (5102542421), we get a palindrome (6344994436).

The spelling of 1242452015 in words is "one billion, two hundred forty-two million, four hundred fifty-two thousand, fifteen".