1142552665 has 4 divisors (see below), whose sum is σ = 1371063204. Its totient is φ = 914042128.

The previous prime is 1142552651. The next prime is 1142552689. The reversal of 1142552665 is 5662552411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 369100944 + 773451721 = 19212^2 + 27811^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142552665 - 2⁵ = 1142552633 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114255262 + ... + 114255271.

It is an arithmetic number, because the mean of its divisors is an integer number (342765801).

Almost surely, 2^1142552665 is an apocalyptic number.

It is an amenable number.

1142552665 is a deficient number, since it is larger than the sum of its proper divisors (228510539).

1142552665 is an equidigital number, since it uses as much as digits as its factorization.

1142552665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228510538.

The product of its digits is 72000, while the sum is 37.

The square root of 1142552665 is about 33801.6666009237. Note that the first 4 decimals coincide. The cubic root of 1142552665 is about 1045.4230607726.

The spelling of 1142552665 in words is "one billion, one hundred forty-two million, five hundred fifty-two thousand, six hundred sixty-five".