1965103 has 4 divisors (see below), whose sum is σ = 2245840. Its totient is φ = 1684368.

The previous prime is 1965091. The next prime is 1965109. The reversal of 1965103 is 3015691.

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

It is not a de Polignac number, because 1965103 - 2¹⁷ = 1834031 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1965109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140358 + ... + 140371.

It is an arithmetic number, because the mean of its divisors is an integer number (561460).

2^1965103 is an apocalyptic number.

1965103 is a deficient number, since it is larger than the sum of its proper divisors (280737).

1965103 is an equidigital number, since it uses as much as digits as its factorization.

1965103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280736.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 1965103 is about 1401.8213152895. The cubic root of 1965103 is about 125.2550100718.

The spelling of 1965103 in words is "one million, nine hundred sixty-five thousand, one hundred three".