1364223491 has 2 divisors, whose sum is σ = 1364223492. Its totient is φ = 1364223490.

The previous prime is 1364223473. The next prime is 1364223527. The reversal of 1364223491 is 1943224631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1364223491 - 2¹⁴ = 1364207107 is a prime.

It is a super-2 number, since 2×1364223491² = 3722211466792454162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1364229491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 682111745 + 682111746.

It is an arithmetic number, because the mean of its divisors is an integer number (682111746).

Almost surely, 2^1364223491 is an apocalyptic number.

1364223491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1364223491 is an equidigital number, since it uses as much as digits as its factorization.

1364223491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 35.

The square root of 1364223491 is about 36935.3961803579. The cubic root of 1364223491 is about 1109.0773630639.

The spelling of 1364223491 in words is "one billion, three hundred sixty-four million, two hundred twenty-three thousand, four hundred ninety-one".