1320135 has 32 divisors (see below), whose sum is σ = 2322432. Its totient is φ = 637440.

The previous prime is 1320127. The next prime is 1320149. The reversal of 1320135 is 5310231.

It is a happy number.

It is not a de Polignac number, because 1320135 - 2³ = 1320127 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7822 + ... + 7988.

It is an arithmetic number, because the mean of its divisors is an integer number (72576).

2^1320135 is an apocalyptic number.

1320135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1320135 is a deficient number, since it is larger than the sum of its proper divisors (1002297).

1320135 is a wasteful number, since it uses less digits than its factorization.

1320135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 1320135 is about 1148.9712790144. The cubic root of 1320135 is about 109.6998705620.

Adding to 1320135 its reverse (5310231), we get a palindrome (6630366).

The spelling of 1320135 in words is "one million, three hundred twenty thousand, one hundred thirty-five".