1965133 has 2 divisors, whose sum is σ = 1965134. Its totient is φ = 1965132.

The previous prime is 1965109. The next prime is 1965167. The reversal of 1965133 is 3315691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1304164 + 660969 = 1142^2 + 813^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1965133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1965193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 982566 + 982567.

It is an arithmetic number, because the mean of its divisors is an integer number (982567).

2^1965133 is an apocalyptic number.

It is an amenable number.

1965133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1965133 is an equidigital number, since it uses as much as digits as its factorization.

1965133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2430, while the sum is 28.

The square root of 1965133 is about 1401.8320156139. The cubic root of 1965133 is about 125.2556474652.

It can be divided in two parts, 196 and 5133, that added together give a square (5329 = 73²).

The spelling of 1965133 in words is "one million, nine hundred sixty-five thousand, one hundred thirty-three".