1356484769 has 2 divisors, whose sum is σ = 1356484770. Its totient is φ = 1356484768.

The previous prime is 1356484739. The next prime is 1356484781. The reversal of 1356484769 is 9674846531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 805878544 + 550606225 = 28388^2 + 23465^2 .

It is a cyclic number.

It is not a de Polignac number, because 1356484769 - 2⁸ = 1356484513 is a prime.

It is a super-2 number, since 2×1356484769² = 3680101857057966722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1356484769.

It is not a weakly prime, because it can be changed into another prime (1356484709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 678242384 + 678242385.

It is an arithmetic number, because the mean of its divisors is an integer number (678242385).

Almost surely, 2^1356484769 is an apocalyptic number.

It is an amenable number.

1356484769 is a deficient number, since it is larger than the sum of its proper divisors (1).

1356484769 is an equidigital number, since it uses as much as digits as its factorization.

1356484769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4354560, while the sum is 53.

The square root of 1356484769 is about 36830.4869503513. The cubic root of 1356484769 is about 1106.9762601649.

The spelling of 1356484769 in words is "one billion, three hundred fifty-six million, four hundred eighty-four thousand, seven hundred sixty-nine".