1149761872 has 30 divisors (see below), whose sum is σ = 2591365578. Its totient is φ = 492754752.

The previous prime is 1149761849. The next prime is 1149761923. The reversal of 1149761872 is 2781679411.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1125199936 + 24561936 = 33544^2 + 4956^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 732483 + ... + 734050.

Almost surely, 2^1149761872 is an apocalyptic number.

It is an amenable number.

1149761872 is an abundant number, since it is smaller than the sum of its proper divisors (1441603706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1149761872 is a wasteful number, since it uses less digits than its factorization.

1149761872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466555 (or 1466542 counting only the distinct ones).

The product of its digits is 169344, while the sum is 46.

The square root of 1149761872 is about 33908.1387280399. The cubic root of 1149761872 is about 1047.6172339137.

The spelling of 1149761872 in words is "one billion, one hundred forty-nine million, seven hundred sixty-one thousand, eight hundred seventy-two".