63643045 has 4 divisors (see below), whose sum is σ = 76371660. Its totient is φ = 50914432.

The previous prime is 63643033. The next prime is 63643049. The reversal of 63643045 is 54034636.

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 8749764 + 54893281 = 2958^2 + 7409^2 .

It is a cyclic number.

It is not a de Polignac number, because 63643045 - 2¹³ = 63634853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63642998 and 63643016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63643049) 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, 6364300 + ... + 6364309.

It is an arithmetic number, because the mean of its divisors is an integer number (19092915).

Almost surely, 2^63643045 is an apocalyptic number.

It is an amenable number.

63643045 is a deficient number, since it is larger than the sum of its proper divisors (12728615).

63643045 is a wasteful number, since it uses less digits than its factorization.

63643045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12728614.

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 63643045 is about 7977.6591178114. The cubic root of 63643045 is about 399.2549568885.

It can be divided in two parts, 6364 and 3045, that added together give a square (9409 = 97²).

The spelling of 63643045 in words is "sixty-three million, six hundred forty-three thousand, forty-five".