1366042345 has 8 divisors (see below), whose sum is σ = 1640540160. Its totient is φ = 1091974320.

The previous prime is 1366042313. The next prime is 1366042393. The reversal of 1366042345 is 5432406631.

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

It is not a de Polignac number, because 1366042345 - 2⁵ = 1366042313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1366042345.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100411 + ... + 113200.

It is an arithmetic number, because the mean of its divisors is an integer number (205067520).

Almost surely, 2^1366042345 is an apocalyptic number.

It is an amenable number.

1366042345 is a deficient number, since it is larger than the sum of its proper divisors (274497815).

1366042345 is a wasteful number, since it uses less digits than its factorization.

1366042345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214895.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 1366042345 is about 36960.0100784618. The cubic root of 1366042345 is about 1109.5700374617.

Adding to 1366042345 its reverse (5432406631), we get a palindrome (6798448976).

The spelling of 1366042345 in words is "one billion, three hundred sixty-six million, forty-two thousand, three hundred forty-five".