1963513 has 2 divisors, whose sum is σ = 1963514. Its totient is φ = 1963512.

The previous prime is 1963471. The next prime is 1963537. The reversal of 1963513 is 3153691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1776889 + 186624 = 1333^2 + 432^2 .

It is a cyclic number.

It is not a de Polignac number, because 1963513 - 2⁹ = 1963001 is a prime.

1963513 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1963543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 981756 + 981757.

It is an arithmetic number, because the mean of its divisors is an integer number (981757).

2^1963513 is an apocalyptic number.

It is an amenable number.

1963513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1963513 is an equidigital number, since it uses as much as digits as its factorization.

1963513 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 1963513 is about 1401.2540811716. The cubic root of 1963513 is about 125.2212189332.

It can be divided in two parts, 19635 and 13, that multiplied together give a triangular number (255255 = T₇₁₄).

The spelling of 1963513 in words is "one million, nine hundred sixty-three thousand, five hundred thirteen".