1266171052 has 6 divisors (see below), whose sum is σ = 2215799348. Its totient is φ = 633085524.

The previous prime is 1266171013. The next prime is 1266171097. The reversal of 1266171052 is 2501716621.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158271378 + ... + 158271385.

Almost surely, 2^1266171052 is an apocalyptic number.

It is an amenable number.

1266171052 is a deficient number, since it is larger than the sum of its proper divisors (949628296).

1266171052 is a wasteful number, since it uses less digits than its factorization.

1266171052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316542767 (or 316542765 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 1266171052 is about 35583.2973739085. The cubic root of 1266171052 is about 1081.8427194645.

Adding to 1266171052 its reverse (2501716621), we get a palindrome (3767887673).

The spelling of 1266171052 in words is "one billion, two hundred sixty-six million, one hundred seventy-one thousand, fifty-two".