63540133 has 4 divisors (see below), whose sum is σ = 64123180. Its totient is φ = 62957088.

The previous prime is 63540089. The next prime is 63540143. The reversal of 63540133 is 33104536.

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

It can be written as a sum of positive squares in 2 ways, for example, as 47032164 + 16507969 = 6858^2 + 4063^2 .

It is a cyclic number.

It is not a de Polignac number, because 63540133 - 2²⁵ = 29985701 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63540098 and 63540107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63540143) 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, 291360 + ... + 291577.

It is an arithmetic number, because the mean of its divisors is an integer number (16030795).

Almost surely, 2^63540133 is an apocalyptic number.

It is an amenable number.

63540133 is a deficient number, since it is larger than the sum of its proper divisors (583047).

63540133 is a wasteful number, since it uses less digits than its factorization.

63540133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583046.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 63540133 is about 7971.2064958825. The cubic root of 63540133 is about 399.0396398663.

Adding to 63540133 its reverse (33104536), we get a palindrome (96644669).

The spelling of 63540133 in words is "sixty-three million, five hundred forty thousand, one hundred thirty-three".