1206535 has 8 divisors (see below), whose sum is σ = 1579536. Its totient is φ = 877440.

The previous prime is 1206529. The next prime is 1206539. The reversal of 1206535 is 5356021.

It is a happy number.

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

It is not a de Polignac number, because 1206535 - 2⁷ = 1206407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10914 + ... + 11023.

It is an arithmetic number, because the mean of its divisors is an integer number (197442).

2^1206535 is an apocalyptic number.

1206535 is a deficient number, since it is larger than the sum of its proper divisors (373001).

1206535 is a wasteful number, since it uses less digits than its factorization.

1206535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21953.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 1206535 is about 1098.4238708258. The cubic root of 1206535 is about 106.4584098517.

It can be divided in two parts, 12065 and 35, that added together give a square (12100 = 110²).

The spelling of 1206535 in words is "one million, two hundred six thousand, five hundred thirty-five".