1396782133 has 2 divisors, whose sum is σ = 1396782134. Its totient is φ = 1396782132.

The previous prime is 1396782103. The next prime is 1396782151. The reversal of 1396782133 is 3312876931.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1390320369 + 6461764 = 37287^2 + 2542^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1396782133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1396782133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1396782103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 698391066 + 698391067.

It is an arithmetic number, because the mean of its divisors is an integer number (698391067).

Almost surely, 2^1396782133 is an apocalyptic number.

It is an amenable number.

1396782133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1396782133 is an equidigital number, since it uses as much as digits as its factorization.

1396782133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 43.

The square root of 1396782133 is about 37373.5485738242. The cubic root of 1396782133 is about 1117.8311911838.

It can be divided in two parts, 13967 and 82133, that added together give a square (96100 = 310²).

The spelling of 1396782133 in words is "one billion, three hundred ninety-six million, seven hundred eighty-two thousand, one hundred thirty-three".