1340236065 has 32 divisors (see below), whose sum is σ = 2468632320. Its totient is φ = 608200704.

The previous prime is 1340236057. The next prime is 1340236087. The reversal of 1340236065 is 5606320431.

It is not a de Polignac number, because 1340236065 - 2³ = 1340236057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32200 + ... + 60969.

It is an arithmetic number, because the mean of its divisors is an integer number (77144760).

Almost surely, 2^1340236065 is an apocalyptic number.

1340236065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1340236065 is a deficient number, since it is larger than the sum of its proper divisors (1128396255).

1340236065 is a wasteful number, since it uses less digits than its factorization.

1340236065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93321.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 1340236065 is about 36609.2346956338. The cubic root of 1340236065 is about 1102.5385078153.

Adding to 1340236065 its reverse (5606320431), we get a palindrome (6946556496).

The spelling of 1340236065 in words is "one billion, three hundred forty million, two hundred thirty-six thousand, sixty-five".