1356020779 has 2 divisors, whose sum is σ = 1356020780. Its totient is φ = 1356020778.

The previous prime is 1356020761. The next prime is 1356020797. The reversal of 1356020779 is 9770206531.

Together with next prime (1356020797) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (1356020761) and next prime (1356020797).

It is a cyclic number.

It is not a de Polignac number, because 1356020779 - 2¹¹ = 1356018731 is a prime.

It is not a weakly prime, because it can be changed into another prime (1351020779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 678010389 + 678010390.

It is an arithmetic number, because the mean of its divisors is an integer number (678010390).

Almost surely, 2^1356020779 is an apocalyptic number.

1356020779 is a deficient number, since it is larger than the sum of its proper divisors (1).

1356020779 is an equidigital number, since it uses as much as digits as its factorization.

1356020779 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1356020779 is about 36824.1874180545. The cubic root of 1356020779 is about 1106.8500308354.

The spelling of 1356020779 in words is "one billion, three hundred fifty-six million, twenty thousand, seven hundred seventy-nine".