1206913 has 4 divisors (see below), whose sum is σ = 1232640. Its totient is φ = 1181188.

The previous prime is 1206869. The next prime is 1206941. The reversal of 1206913 is 3196021.

It is the 449-th star number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1206913 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12793 + ... + 12886.

It is an arithmetic number, because the mean of its divisors is an integer number (308160).

2^1206913 is an apocalyptic number.

It is an amenable number.

1206913 is a deficient number, since it is larger than the sum of its proper divisors (25727).

1206913 is an equidigital number, since it uses as much as digits as its factorization.

1206913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25726.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 1206913 is about 1098.5959220751. The cubic root of 1206913 is about 106.4695262793.

The spelling of 1206913 in words is "one million, two hundred six thousand, nine hundred thirteen".