1138422937 has 4 divisors (see below), whose sum is σ = 1152138960. Its totient is φ = 1124706916.

The previous prime is 1138422911. The next prime is 1138422959. The reversal of 1138422937 is 7392248311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1138422937 - 2¹⁹ = 1137898649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1138422937.

It is not an unprimeable number, because it can be changed into a prime (1138422977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6857887 + ... + 6858052.

It is an arithmetic number, because the mean of its divisors is an integer number (288034740).

Almost surely, 2^1138422937 is an apocalyptic number.

It is an amenable number.

1138422937 is a deficient number, since it is larger than the sum of its proper divisors (13716023).

1138422937 is an equidigital number, since it uses as much as digits as its factorization.

1138422937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13716022.

The product of its digits is 72576, while the sum is 40.

The square root of 1138422937 is about 33740.5236622077. The cubic root of 1138422937 is about 1044.1619883526.

The spelling of 1138422937 in words is "one billion, one hundred thirty-eight million, four hundred twenty-two thousand, nine hundred thirty-seven".