1164156349 has 4 divisors (see below), whose sum is σ = 1165038940. Its totient is φ = 1163273760.

The previous prime is 1164156319. The next prime is 1164156359. The reversal of 1164156349 is 9436514611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9436514611 = 25889 ⋅364499.

It can be written as a sum of positive squares in 2 ways, for example, as 626751225 + 537405124 = 25035^2 + 23182^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1164156349 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 (1164156319) 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, 439314 + ... + 441955.

It is an arithmetic number, because the mean of its divisors is an integer number (291259735).

Almost surely, 2^1164156349 is an apocalyptic number.

It is an amenable number.

1164156349 is a deficient number, since it is larger than the sum of its proper divisors (882591).

1164156349 is an equidigital number, since it uses as much as digits as its factorization.

1164156349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882590.

The product of its digits is 77760, while the sum is 40.

The square root of 1164156349 is about 34119.7354767003. The cubic root of 1164156349 is about 1051.9710065043.

The spelling of 1164156349 in words is "one billion, one hundred sixty-four million, one hundred fifty-six thousand, three hundred forty-nine".