1320450697 has 2 divisors, whose sum is σ = 1320450698. Its totient is φ = 1320450696.

The previous prime is 1320450683. The next prime is 1320450701. The reversal of 1320450697 is 7960540231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1074462841 + 245987856 = 32779^2 + 15684^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320450697 - 2²⁷ = 1186232969 is a prime.

It is not a weakly prime, because it can be changed into another prime (1320450647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660225348 + 660225349.

It is an arithmetic number, because the mean of its divisors is an integer number (660225349).

Almost surely, 2^1320450697 is an apocalyptic number.

It is an amenable number.

1320450697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320450697 is an equidigital number, since it uses as much as digits as its factorization.

1320450697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 1320450697 is about 36338.0062331438. The cubic root of 1320450697 is about 1097.0861440506.

The spelling of 1320450697 in words is "one billion, three hundred twenty million, four hundred fifty thousand, six hundred ninety-seven".