1964135 has 4 divisors (see below), whose sum is σ = 2356968. Its totient is φ = 1571304.

The previous prime is 1964119. The next prime is 1964143. The reversal of 1964135 is 5314691.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1964135 - 2⁴ = 1964119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1964098 and 1964107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196409 + ... + 196418.

It is an arithmetic number, because the mean of its divisors is an integer number (589242).

2^1964135 is an apocalyptic number.

1964135 is a deficient number, since it is larger than the sum of its proper divisors (392833).

1964135 is an equidigital number, since it uses as much as digits as its factorization.

1964135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392832.

The product of its digits is 3240, while the sum is 29.

The square root of 1964135 is about 1401.4760076434. The cubic root of 1964135 is about 125.2344400281.

The spelling of 1964135 in words is "one million, nine hundred sixty-four thousand, one hundred thirty-five".