1326747307 has 4 divisors (see below), whose sum is σ = 1328690520. Its totient is φ = 1324804096.

The previous prime is 1326747277. The next prime is 1326747313. The reversal of 1326747307 is 7037476231.

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

It is a cyclic number.

It is not a de Polignac number, because 1326747307 - 2⁷ = 1326747179 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1326747307.

It is not an unprimeable number, because it can be changed into a prime (1326747347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 970582 + ... + 971947.

It is an arithmetic number, because the mean of its divisors is an integer number (332172630).

Almost surely, 2^1326747307 is an apocalyptic number.

1326747307 is a deficient number, since it is larger than the sum of its proper divisors (1943213).

1326747307 is an equidigital number, since it uses as much as digits as its factorization.

1326747307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943212.

The product of its (nonzero) digits is 148176, while the sum is 40.

The square root of 1326747307 is about 36424.5426464081. The cubic root of 1326747307 is about 1098.8272092748.

The spelling of 1326747307 in words is "one billion, three hundred twenty-six million, seven hundred forty-seven thousand, three hundred seven".