1356020797 has 2 divisors, whose sum is σ = 1356020798. Its totient is φ = 1356020796.

The previous prime is 1356020779. The next prime is 1356020801. The reversal of 1356020797 is 7970206531.

Together with previous prime (1356020779) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 805367641 + 550653156 = 28379^2 + 23466^2 .

It is a cyclic number.

It is not a de Polignac number, because 1356020797 - 2¹⁹ = 1355496509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1356024797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 678010398 + 678010399.

It is an arithmetic number, because the mean of its divisors is an integer number (678010399).

Almost surely, 2^1356020797 is an apocalyptic number.

It is an amenable number.

1356020797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1356020797 is an equidigital number, since it uses as much as digits as its factorization.

1356020797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79380, while the sum is 40.

The square root of 1356020797 is about 36824.1876624590. The cubic root of 1356020797 is about 1106.8500357329.

The spelling of 1356020797 in words is "one billion, three hundred fifty-six million, twenty thousand, seven hundred ninety-seven".