1164139 has 4 divisors (see below), whose sum is σ = 1191256. Its totient is φ = 1137024.

The previous prime is 1164101. The next prime is 1164173. The reversal of 1164139 is 9314611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9314611 = 353 ⋅26387.

It is a cyclic number.

It is not a de Polignac number, because 1164139 - 2⁹ = 1163627 is a prime.

It is a super-2 number, since 2×1164139² = 2710439222642, which contains 22 as substring.

It is a Duffinian number.

1164139 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1164179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13494 + ... + 13579.

It is an arithmetic number, because the mean of its divisors is an integer number (297814).

2^1164139 is an apocalyptic number.

1164139 is a deficient number, since it is larger than the sum of its proper divisors (27117).

1164139 is an equidigital number, since it uses as much as digits as its factorization.

1164139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27116.

The product of its digits is 648, while the sum is 25.

The square root of 1164139 is about 1078.9527329777. The cubic root of 1164139 is about 105.1965780764.

The spelling of 1164139 in words is "one million, one hundred sixty-four thousand, one hundred thirty-nine".