1364731906 has 4 divisors (see below), whose sum is σ = 2047097862. Its totient is φ = 682365952.

The previous prime is 1364731883. The next prime is 1364731913. The reversal of 1364731906 is 6091374631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 920576281 + 444155625 = 30341^2 + 21075^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341182975 + ... + 341182978.

Almost surely, 2^1364731906 is an apocalyptic number.

1364731906 is a deficient number, since it is larger than the sum of its proper divisors (682365956).

1364731906 is an equidigital number, since it uses as much as digits as its factorization.

1364731906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682365955.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 1364731906 is about 36942.2780293798. The cubic root of 1364731906 is about 1109.2151219034.

The spelling of 1364731906 in words is "one billion, three hundred sixty-four million, seven hundred thirty-one thousand, nine hundred six".