1266245152 has 48 divisors (see below), whose sum is σ = 2550766680. Its totient is φ = 618596352.

The previous prime is 1266245147. The next prime is 1266245161. The reversal of 1266245152 is 2515426621.

It can be written as a sum of positive squares in 4 ways, for example, as 1224720016 + 41525136 = 34996^2 + 6444^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252138 + ... + 257110.

Almost surely, 2^1266245152 is an apocalyptic number.

It is an amenable number.

1266245152 is an abundant number, since it is smaller than the sum of its proper divisors (1284521528).

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

1266245152 is a wasteful number, since it uses less digits than its factorization.

1266245152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5165 (or 5157 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 1266245152 is about 35584.3385775259. The cubic root of 1266245152 is about 1081.8638232434.

The spelling of 1266245152 in words is "one billion, two hundred sixty-six million, two hundred forty-five thousand, one hundred fifty-two".