1142371939 has 4 divisors (see below), whose sum is σ = 1146817224. Its totient is φ = 1137926656.

The previous prime is 1142371877. The next prime is 1142371957. The reversal of 1142371939 is 9391732411.

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

It is a cyclic number.

It is not a de Polignac number, because 1142371939 - 2²⁹ = 605501027 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142371969) 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, 2222257 + ... + 2222770.

It is an arithmetic number, because the mean of its divisors is an integer number (286704306).

Almost surely, 2^1142371939 is an apocalyptic number.

1142371939 is a deficient number, since it is larger than the sum of its proper divisors (4445285).

1142371939 is an equidigital number, since it uses as much as digits as its factorization.

1142371939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4445284.

The product of its digits is 40824, while the sum is 40.

The square root of 1142371939 is about 33798.9931654776. The cubic root of 1142371939 is about 1045.3679371019.

The spelling of 1142371939 in words is "one billion, one hundred forty-two million, three hundred seventy-one thousand, nine hundred thirty-nine".