1320464269 has 2 divisors, whose sum is σ = 1320464270. Its totient is φ = 1320464268.

The previous prime is 1320464267. The next prime is 1320464281. The reversal of 1320464269 is 9624640231.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1313120169 + 7344100 = 36237^2 + 2710^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320464269 - 2¹ = 1320464267 is a prime.

It is a super-2 number, since 2×1320464269² = 3487251771411408722, which contains 22 as substring.

Together with 1320464267, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320464267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660232134 + 660232135.

It is an arithmetic number, because the mean of its divisors is an integer number (660232135).

Almost surely, 2^1320464269 is an apocalyptic number.

It is an amenable number.

1320464269 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320464269 is an equidigital number, since it uses as much as digits as its factorization.

1320464269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 1320464269 is about 36338.1929792883. The cubic root of 1320464269 is about 1097.0899027678.

The spelling of 1320464269 in words is "one billion, three hundred twenty million, four hundred sixty-four thousand, two hundred sixty-nine".