1201535 has 8 divisors (see below), whose sum is σ = 1466640. Its totient is φ = 944704.

The previous prime is 1201531. The next prime is 1201553. The reversal of 1201535 is 5351021.

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

It is a cyclic number.

It is not a de Polignac number, because 1201535 - 2² = 1201531 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 (1201531) 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 7 ways as a sum of consecutive naturals, for example, 1742 + ... + 2331.

It is an arithmetic number, because the mean of its divisors is an integer number (183330).

2^1201535 is an apocalyptic number.

1201535 is a deficient number, since it is larger than the sum of its proper divisors (265105).

1201535 is an equidigital number, since it uses as much as digits as its factorization.

1201535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4137.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 1201535 is about 1096.1455195365. The cubic root of 1201535 is about 106.3111481927.

Adding to 1201535 its reverse (5351021), we get a palindrome (6552556).

The spelling of 1201535 in words is "one million, two hundred one thousand, five hundred thirty-five".