1162139 has 4 divisors (see below), whose sum is σ = 1267800. Its totient is φ = 1056480.

The previous prime is 1162129. The next prime is 1162193. The reversal of 1162139 is 9312611.

It is a happy number.

1162139 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.

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 1162139 - 2⁸ = 1161883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1162129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52814 + ... + 52835.

It is an arithmetic number, because the mean of its divisors is an integer number (316950).

2^1162139 is an apocalyptic number.

1162139 is a deficient number, since it is larger than the sum of its proper divisors (105661).

1162139 is a wasteful number, since it uses less digits than its factorization.

1162139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105660.

The product of its digits is 324, while the sum is 23.

The square root of 1162139 is about 1078.0255099022. The cubic root of 1162139 is about 105.1363006935.

The spelling of 1162139 in words is "one million, one hundred sixty-two thousand, one hundred thirty-nine".