1368274477 has 2 divisors, whose sum is σ = 1368274478. Its totient is φ = 1368274476.

The previous prime is 1368274423. The next prime is 1368274483. The reversal of 1368274477 is 7744728631.

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., 1305087876 + 63186601 = 36126^2 + 7949^2 .

It is an emirp because it is prime and its reverse (7744728631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1368274477 - 2¹¹ = 1368272429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1368274477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1368274877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 684137238 + 684137239.

It is an arithmetic number, because the mean of its divisors is an integer number (684137239).

Almost surely, 2^1368274477 is an apocalyptic number.

It is an amenable number.

1368274477 is a deficient number, since it is larger than the sum of its proper divisors (1).

1368274477 is an equidigital number, since it uses as much as digits as its factorization.

1368274477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1580544, while the sum is 49.

The square root of 1368274477 is about 36990.1943357966. The cubic root of 1368274477 is about 1110.1740594937.

The spelling of 1368274477 in words is "one billion, three hundred sixty-eight million, two hundred seventy-four thousand, four hundred seventy-seven".