63545138 has 4 divisors (see below), whose sum is σ = 95317710. Its totient is φ = 31772568.

The previous prime is 63545137. The next prime is 63545143. The reversal of 63545138 is 83154536.

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

It can be written as a sum of positive squares in only one way, i.e., 57866449 + 5678689 = 7607^2 + 2383^2 .

It is a junction number, because it is equal to n+sod(n) for n = 63545098 and 63545107.

It is not an unprimeable number, because it can be changed into a prime (63545137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15886283 + ... + 15886286.

Almost surely, 2^63545138 is an apocalyptic number.

63545138 is a deficient number, since it is larger than the sum of its proper divisors (31772572).

63545138 is a wasteful number, since it uses less digits than its factorization.

63545138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31772571.

The product of its digits is 43200, while the sum is 35.

The square root of 63545138 is about 7971.5204321384. The cubic root of 63545138 is about 399.0501169242.

The spelling of 63545138 in words is "sixty-three million, five hundred forty-five thousand, one hundred thirty-eight".