1156316242 has 16 divisors (see below), whose sum is σ = 1756097280. Its totient is φ = 570976128.

The previous prime is 1156316219. The next prime is 1156316261. The reversal of 1156316242 is 2426136511.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 88359 + ... + 100597.

It is an arithmetic number, because the mean of its divisors is an integer number (109756080).

Almost surely, 2^1156316242 is an apocalyptic number.

1156316242 is a deficient number, since it is larger than the sum of its proper divisors (599781038).

1156316242 is a wasteful number, since it uses less digits than its factorization.

1156316242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12825.

The product of its digits is 8640, while the sum is 31.

The square root of 1156316242 is about 34004.6502996281. The cubic root of 1156316242 is about 1049.6041567597.

The spelling of 1156316242 in words is "one billion, one hundred fifty-six million, three hundred sixteen thousand, two hundred forty-two".