1366130405 has 8 divisors (see below), whose sum is σ = 1695886200. Its totient is φ = 1055217856.

The previous prime is 1366130401. The next prime is 1366130411. The reversal of 1366130405 is 5040316631.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 487482241 + 878648164 = 22079^2 + 29642^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1366130405 - 2² = 1366130401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366130401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4710650 + ... + 4710939.

It is an arithmetic number, because the mean of its divisors is an integer number (211985775).

Almost surely, 2^1366130405 is an apocalyptic number.

It is an amenable number.

1366130405 is a deficient number, since it is larger than the sum of its proper divisors (329755795).

1366130405 is an equidigital number, since it uses as much as digits as its factorization.

1366130405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9421623.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 1366130405 is about 36961.2013468177. The cubic root of 1366130405 is about 1109.5938792405.

The spelling of 1366130405 in words is "one billion, three hundred sixty-six million, one hundred thirty thousand, four hundred five".