1968135 has 16 divisors (see below), whose sum is σ = 3391584. Its totient is φ = 968832.

The previous prime is 1968103. The next prime is 1968137. The reversal of 1968135 is 5318691.

It is not a de Polignac number, because 1968135 - 2⁵ = 1968103 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1968096 and 1968105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1968137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4852 + ... + 5241.

It is an arithmetic number, because the mean of its divisors is an integer number (211974).

2^1968135 is an apocalyptic number.

1968135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1968135 is a deficient number, since it is larger than the sum of its proper divisors (1423449).

1968135 is a wasteful number, since it uses less digits than its factorization.

1968135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10114.

The product of its digits is 6480, while the sum is 33.

The square root of 1968135 is about 1402.9023487043. The cubic root of 1968135 is about 125.3193965251.

It can be divided in two parts, 1 and 968135, that added together give a triangular number (968136 = T₁₃₉₁).

The spelling of 1968135 in words is "one million, nine hundred sixty-eight thousand, one hundred thirty-five".