1142770815 has 32 divisors (see below), whose sum is σ = 2044570560. Its totient is φ = 605584512.

The previous prime is 1142770793. The next prime is 1142770817. The reversal of 1142770815 is 5180772411.

It is not a de Polignac number, because 1142770815 - 2⁷ = 1142770687 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1142770815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142770817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5764 + ... + 48153.

It is an arithmetic number, because the mean of its divisors is an integer number (63892830).

Almost surely, 2^1142770815 is an apocalyptic number.

1142770815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1142770815 is a deficient number, since it is larger than the sum of its proper divisors (901799745).

1142770815 is a wasteful number, since it uses less digits than its factorization.

1142770815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54088 (or 54082 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 36.

The square root of 1142770815 is about 33804.8933588024. The cubic root of 1142770815 is about 1045.4895914848.

The spelling of 1142770815 in words is "one billion, one hundred forty-two million, seven hundred seventy thousand, eight hundred fifteen".