1142344559 has 4 divisors (see below), whose sum is σ = 1142614704. Its totient is φ = 1142074416.

The previous prime is 1142344547. The next prime is 1142344571. The reversal of 1142344559 is 9554432411.

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

It is an interprime number because it is at equal distance from previous prime (1142344547) and next prime (1142344571).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1142344559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142344859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128627 + ... + 137220.

It is an arithmetic number, because the mean of its divisors is an integer number (285653676).

Almost surely, 2^1142344559 is an apocalyptic number.

1142344559 is a deficient number, since it is larger than the sum of its proper divisors (270145).

1142344559 is an equidigital number, since it uses as much as digits as its factorization.

1142344559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270144.

The product of its digits is 86400, while the sum is 38.

The square root of 1142344559 is about 33798.5881213994. The cubic root of 1142344559 is about 1045.3595853553.

The spelling of 1142344559 in words is "one billion, one hundred forty-two million, three hundred forty-four thousand, five hundred fifty-nine".