1142760865 has 8 divisors (see below), whose sum is σ = 1430935488. Its totient is φ = 874460400.

The previous prime is 1142760851. The next prime is 1142760917. The reversal of 1142760865 is 5680672411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1142760865 - 2²⁵ = 1109206433 is a prime.

It is a super-4 number, since 4×1142760865⁴ (a number of 37 digits) contains 4444 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4968411 + ... + 4968640.

It is an arithmetic number, because the mean of its divisors is an integer number (178866936).

Almost surely, 2^1142760865 is an apocalyptic number.

It is an amenable number.

1142760865 is a deficient number, since it is larger than the sum of its proper divisors (288174623).

1142760865 is an equidigital number, since it uses as much as digits as its factorization.

1142760865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9937079.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 1142760865 is about 33804.7461904390. The cubic root of 1142760865 is about 1045.4865571489.

The spelling of 1142760865 in words is "one billion, one hundred forty-two million, seven hundred sixty thousand, eight hundred sixty-five".