1206135 has 36 divisors (see below), whose sum is σ = 2436408. Its totient is φ = 550368.

The previous prime is 1206131. The next prime is 1206151. The reversal of 1206135 is 5316021.

It is not a de Polignac number, because 1206135 - 2² = 1206131 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1932 + ... + 2478.

It is an arithmetic number, because the mean of its divisors is an integer number (67678).

2^1206135 is an apocalyptic number.

1206135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1206135 is an abundant number, since it is smaller than the sum of its proper divisors (1230273).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1206135 is a wasteful number, since it uses less digits than its factorization.

1206135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1206135 is about 1098.2417766594. The cubic root of 1206135 is about 106.4466439074.

The spelling of 1206135 in words is "one million, two hundred six thousand, one hundred thirty-five".