1367742289 has 9 divisors (see below), whose sum is σ = 1414471899. Its totient is φ = 1322512080.

The previous prime is 1367742263. The next prime is 1367742317. The reversal of 1367742289 is 9822477631.

It is a happy number.

The square root of 1367742289 is 36983.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 702515025 + 665227264 = 26505^2 + 25792^2 .

It is not a de Polignac number, because 1367742289 - 2⁹ = 1367741777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1367742209) 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 in 8 ways as a sum of consecutive naturals, for example, 1145877 + ... + 1147069.

Almost surely, 2^1367742289 is an apocalyptic number.

1367742289 is the 36983-rd square number.

1367742289 is the 18492-nd centered octagonal number.

It is an amenable number.

1367742289 is a deficient number, since it is larger than the sum of its proper divisors (46729610).

1367742289 is an frugal number, since it uses more digits than its factorization.

1367742289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2448 (or 1224 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 49.

The cubic root of 1367742289 is about 1110.0301073997.

Multiplying 1367742289 by its sum of digits (49), we get a square (67019372161 = 258881²).

The spelling of 1367742289 in words is "one billion, three hundred sixty-seven million, seven hundred forty-two thousand, two hundred eighty-nine".