1266904148 has 6 divisors (see below), whose sum is σ = 2217082266. Its totient is φ = 633452072.

The previous prime is 1266904127. The next prime is 1266904153. The reversal of 1266904148 is 8414096621.

It can be written as a sum of positive squares in only one way, i.e., 1239884944 + 27019204 = 35212^2 + 5198^2 .

It is a super-2 number, since 2×1266904148² = 3210092240439211808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158363015 + ... + 158363022.

It is an arithmetic number, because the mean of its divisors is an integer number (369513711).

Almost surely, 2^1266904148 is an apocalyptic number.

It is an amenable number.

1266904148 is a deficient number, since it is larger than the sum of its proper divisors (950178118).

1266904148 is a wasteful number, since it uses less digits than its factorization.

1266904148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316726041 (or 316726039 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 1266904148 is about 35593.5970084508. The cubic root of 1266904148 is about 1082.0514699738.

The spelling of 1266904148 in words is "one billion, two hundred sixty-six million, nine hundred four thousand, one hundred forty-eight".