1201135 has 16 divisors (see below), whose sum is σ = 1645056. Its totient is φ = 834048.

The previous prime is 1201117. The next prime is 1201141. The reversal of 1201135 is 5311021.

It is a cyclic number.

It is not a de Polignac number, because 1201135 - 2⁵ = 1201103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 562 + ... + 1648.

It is an arithmetic number, because the mean of its divisors is an integer number (102816).

2^1201135 is an apocalyptic number.

1201135 is a deficient number, since it is larger than the sum of its proper divisors (443921).

1201135 is a wasteful number, since it uses less digits than its factorization.

1201135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 1201135 is about 1095.9630468223. The cubic root of 1201135 is about 106.2993496242.

Adding to 1201135 its reverse (5311021), we get a palindrome (6512156).

The spelling of 1201135 in words is "one million, two hundred one thousand, one hundred thirty-five".