1142815685 has 16 divisors (see below), whose sum is σ = 1511479872. Its totient is φ = 822566400.

The previous prime is 1142815679. The next prime is 1142815691. The reversal of 1142815685 is 5865182411.

It is an interprime number because it is at equal distance from previous prime (1142815679) and next prime (1142815691).

It is not a de Polignac number, because 1142815685 - 2⁶ = 1142815621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101771 + ... + 112440.

It is an arithmetic number, because the mean of its divisors is an integer number (94467492).

Almost surely, 2^1142815685 is an apocalyptic number.

It is an amenable number.

1142815685 is a deficient number, since it is larger than the sum of its proper divisors (368664187).

1142815685 is a wasteful number, since it uses less digits than its factorization.

1142815685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214324.

The product of its digits is 76800, while the sum is 41.

The square root of 1142815685 is about 33805.5570136035. The cubic root of 1142815685 is about 1045.5032747488.

The spelling of 1142815685 in words is "one billion, one hundred forty-two million, eight hundred fifteen thousand, six hundred eighty-five".