1172819349 has 12 divisors (see below), whose sum is σ = 1824385836. Its totient is φ = 721734912.

The previous prime is 1172819279. The next prime is 1172819357. The reversal of 1172819349 is 9439182711.

It can be written as a sum of positive squares in 2 ways, for example, as 615387249 + 557432100 = 24807^2 + 23610^2 .

It is not a de Polignac number, because 1172819349 - 2⁸ = 1172819093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1172819369) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5011932 + ... + 5012165.

It is an arithmetic number, because the mean of its divisors is an integer number (152032153).

Almost surely, 2^1172819349 is an apocalyptic number.

It is an amenable number.

1172819349 is a deficient number, since it is larger than the sum of its proper divisors (651566487).

1172819349 is a wasteful number, since it uses less digits than its factorization.

1172819349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10024116 (or 10024113 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 1172819349 is about 34246.4501664041. The cubic root of 1172819349 is about 1054.5739537390.

The spelling of 1172819349 in words is "one billion, one hundred seventy-two million, eight hundred nineteen thousand, three hundred forty-nine".