1365897009 has 8 divisors (see below), whose sum is σ = 1822455232. Its totient is φ = 909968400.

The previous prime is 1365897007. The next prime is 1365897019. The reversal of 1365897009 is 9007985631.

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

It is not a de Polignac number, because 1365897009 - 2¹ = 1365897007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1365897007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152317 + ... + 161034.

It is an arithmetic number, because the mean of its divisors is an integer number (227806904).

Almost surely, 2^1365897009 is an apocalyptic number.

It is an amenable number.

1365897009 is a deficient number, since it is larger than the sum of its proper divisors (456558223).

1365897009 is a wasteful number, since it uses less digits than its factorization.

1365897009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314807.

The product of its (nonzero) digits is 408240, while the sum is 48.

The square root of 1365897009 is about 36958.0439011591. The cubic root of 1365897009 is about 1109.5306862681.

The spelling of 1365897009 in words is "one billion, three hundred sixty-five million, eight hundred ninety-seven thousand, nine".