1368513 has 24 divisors (see below), whose sum is σ = 2134080. Its totient is φ = 842400.

The previous prime is 1368509. The next prime is 1368527. The reversal of 1368513 is 3158631.

1368513 = 212² + 213² + ... + 238².

It is not a de Polignac number, because 1368513 - 2² = 1368509 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1368013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8988 + ... + 9138.

It is an arithmetic number, because the mean of its divisors is an integer number (88920).

2^1368513 is an apocalyptic number.

It is an amenable number.

1368513 is a deficient number, since it is larger than the sum of its proper divisors (765567).

1368513 is a wasteful number, since it uses less digits than its factorization.

1368513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229 (or 226 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 1368513 is about 1169.8346036940. The cubic root of 1368513 is about 111.0238565718.

It can be divided in two parts, 1368 and 513, that added together give a palindrome (1881).

The spelling of 1368513 in words is "one million, three hundred sixty-eight thousand, five hundred thirteen".