1310272066 has 4 divisors (see below), whose sum is σ = 1965408102. Its totient is φ = 655136032.

The previous prime is 1310272037. The next prime is 1310272069. The reversal of 1310272066 is 6602720131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1076824225 + 233447841 = 32815^2 + 15279^2 .

It is not an unprimeable number, because it can be changed into a prime (1310272069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327568015 + ... + 327568018.

Almost surely, 2^1310272066 is an apocalyptic number.

1310272066 is a deficient number, since it is larger than the sum of its proper divisors (655136036).

1310272066 is an equidigital number, since it uses as much as digits as its factorization.

1310272066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655136035.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 1310272066 is about 36197.6803952960. The cubic root of 1310272066 is about 1094.2599242916.

Adding to 1310272066 its reverse (6602720131), we get a palindrome (7912992197).

The spelling of 1310272066 in words is "one billion, three hundred ten million, two hundred seventy-two thousand, sixty-six".