1274288166 has 16 divisors (see below), whose sum is σ = 2831751600. Its totient is φ = 424762704.

The previous prime is 1274288137. The next prime is 1274288203. The reversal of 1274288166 is 6618824721.

It is a congruent number.

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, 11798911 + ... + 11799018.

It is an arithmetic number, because the mean of its divisors is an integer number (176984475).

Almost surely, 2^1274288166 is an apocalyptic number.

1274288166 is an abundant number, since it is smaller than the sum of its proper divisors (1557463434).

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

1274288166 is a wasteful number, since it uses less digits than its factorization.

1274288166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23597940 (or 23597934 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 1274288166 is about 35697.1730813520. The cubic root of 1274288166 is about 1084.1496068300.

The spelling of 1274288166 in words is "one billion, two hundred seventy-four million, two hundred eighty-eight thousand, one hundred sixty-six".