1136161849 has 9 divisors (see below), whose sum is σ = 1168982031. Its totient is φ = 1104241320.

The previous prime is 1136161847. The next prime is 1136161877. The reversal of 1136161849 is 9481616311.

The square root of 1136161849 is 33707.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1016653225 + 119508624 = 31885^2 + 10932^2 .

It is not a de Polignac number, because 1136161849 - 2¹ = 1136161847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1136161847) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1246704 + ... + 1247614.

Almost surely, 2^1136161849 is an apocalyptic number.

1136161849 is the 33707-th square number.

1136161849 is the 16854-th centered octagonal number.

It is an amenable number.

1136161849 is a deficient number, since it is larger than the sum of its proper divisors (32820182).

1136161849 is an frugal number, since it uses more digits than its factorization.

1136161849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1896 (or 948 counting only the distinct ones).

The product of its digits is 31104, while the sum is 40.

The cubic root of 1136161849 is about 1043.4702398936.

The spelling of 1136161849 in words is "one billion, one hundred thirty-six million, one hundred sixty-one thousand, eight hundred forty-nine".