1364220787 has 2 divisors, whose sum is σ = 1364220788. Its totient is φ = 1364220786.

The previous prime is 1364220761. The next prime is 1364220791. The reversal of 1364220787 is 7870224631.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1364220787 is a prime.

It is a super-2 number, since 2×1364220787² = 3722196711365798738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1364220797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 682110393 + 682110394.

It is an arithmetic number, because the mean of its divisors is an integer number (682110394).

Almost surely, 2^1364220787 is an apocalyptic number.

1364220787 is a deficient number, since it is larger than the sum of its proper divisors (1).

1364220787 is an equidigital number, since it uses as much as digits as its factorization.

1364220787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 1364220787 is about 36935.3595758861. The cubic root of 1364220787 is about 1109.0766303035.

The spelling of 1364220787 in words is "one billion, three hundred sixty-four million, two hundred twenty thousand, seven hundred eighty-seven".