1133649172 has 6 divisors (see below), whose sum is σ = 1983886058. Its totient is φ = 566824584.

The previous prime is 1133649163. The next prime is 1133649173. The reversal of 1133649172 is 2719463311.

It can be written as a sum of positive squares in only one way, i.e., 1039675536 + 93973636 = 32244^2 + 9694^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133649173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141706143 + ... + 141706150.

Almost surely, 2^1133649172 is an apocalyptic number.

It is an amenable number.

1133649172 is a deficient number, since it is larger than the sum of its proper divisors (850236886).

1133649172 is a wasteful number, since it uses less digits than its factorization.

1133649172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283412297 (or 283412295 counting only the distinct ones).

The product of its digits is 27216, while the sum is 37.

The square root of 1133649172 is about 33669.7070376325. The cubic root of 1133649172 is about 1042.7004437961.

The spelling of 1133649172 in words is "one billion, one hundred thirty-three million, six hundred forty-nine thousand, one hundred seventy-two".