1142827275 has 12 divisors (see below), whose sum is σ = 1889474552. Its totient is φ = 609507840.

The previous prime is 1142827271. The next prime is 1142827319. The reversal of 1142827275 is 5727282411.

It is not a de Polignac number, because 1142827275 - 2² = 1142827271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142827271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7618774 + ... + 7618923.

Almost surely, 2^1142827275 is an apocalyptic number.

1142827275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1142827275 is a deficient number, since it is larger than the sum of its proper divisors (746647277).

1142827275 is a wasteful number, since it uses less digits than its factorization.

1142827275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15237710 (or 15237705 counting only the distinct ones).

The product of its digits is 62720, while the sum is 39.

The square root of 1142827275 is about 33805.7284346899. The cubic root of 1142827275 is about 1045.5068091017.

The spelling of 1142827275 in words is "one billion, one hundred forty-two million, eight hundred twenty-seven thousand, two hundred seventy-five".