1366854841 has 9 divisors (see below), whose sum is σ = 1502857839. Its totient is φ = 1242225600.

The previous prime is 1366854823. The next prime is 1366854913. The reversal of 1366854841 is 1484586631.

The square root of 1366854841 is 36971.

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., 1025344441 + 341510400 = 32021^2 + 18480^2 .

It is not a de Polignac number, because 1366854841 - 2²¹ = 1364757689 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1366854791 and 1366854800.

It is not an unprimeable number, because it can be changed into a prime (1366854241) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 405001 + ... + 408361.

Almost surely, 2^1366854841 is an apocalyptic number.

1366854841 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1366854841 is the 36971-st square number.

1366854841 is the 18486-th centered octagonal number.

It is an amenable number.

1366854841 is a deficient number, since it is larger than the sum of its proper divisors (136002998).

1366854841 is an frugal number, since it uses more digits than its factorization.

1366854841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6744 (or 3372 counting only the distinct ones).

The product of its digits is 552960, while the sum is 46.

The cubic root of 1366854841 is about 1109.7899775789.

The spelling of 1366854841 in words is "one billion, three hundred sixty-six million, eight hundred fifty-four thousand, eight hundred forty-one".