1306538 has 8 divisors (see below), whose sum is σ = 2045088. Its totient is φ = 624844.

The previous prime is 1306519. The next prime is 1306541. The reversal of 1306538 is 8356031.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14156 + ... + 14247.

It is an arithmetic number, because the mean of its divisors is an integer number (255636).

2^1306538 is an apocalyptic number.

1306538 is a deficient number, since it is larger than the sum of its proper divisors (738550).

1306538 is a wasteful number, since it uses less digits than its factorization.

1306538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28428.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1306538 is about 1143.0389319704. The cubic root of 1306538 is about 109.3219446628.

The spelling of 1306538 in words is "one million, three hundred six thousand, five hundred thirty-eight".