1356906823 has 2 divisors, whose sum is σ = 1356906824. Its totient is φ = 1356906822.

The previous prime is 1356906787. The next prime is 1356906829. The reversal of 1356906823 is 3286096531.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1356906823 is a prime.

It is a super-2 number, since 2×1356906823² = 3682392252607906658, 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 1356906823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1356906829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 678453411 + 678453412.

It is an arithmetic number, because the mean of its divisors is an integer number (678453412).

Almost surely, 2^1356906823 is an apocalyptic number.

1356906823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1356906823 is an equidigital number, since it uses as much as digits as its factorization.

1356906823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 1356906823 is about 36836.2161873339. The cubic root of 1356906823 is about 1107.0910557312.

The spelling of 1356906823 in words is "one billion, three hundred fifty-six million, nine hundred six thousand, eight hundred twenty-three".