1136226161 has 12 divisors (see below), whose sum is σ = 1399482468. Its totient is φ = 916618752.

The previous prime is 1136226139. The next prime is 1136226173. The reversal of 1136226161 is 1616226311.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 988725136 + 147501025 = 31444^2 + 12145^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1136226161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1136226101) 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, 681176 + ... + 682841.

It is an arithmetic number, because the mean of its divisors is an integer number (116623539).

Almost surely, 2^1136226161 is an apocalyptic number.

It is an amenable number.

1136226161 is a deficient number, since it is larger than the sum of its proper divisors (263256307).

1136226161 is a wasteful number, since it uses less digits than its factorization.

1136226161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364048 (or 1364041 counting only the distinct ones).

The product of its digits is 2592, while the sum is 29.

The square root of 1136226161 is about 33707.9539723194. The cubic root of 1136226161 is about 1043.4899279313.

The spelling of 1136226161 in words is "one billion, one hundred thirty-six million, two hundred twenty-six thousand, one hundred sixty-one".