63540171 has 12 divisors (see below), whose sum is σ = 92345448. Its totient is φ = 42099264.

The previous prime is 63540157. The next prime is 63540179. The reversal of 63540171 is 17104536.

It is not a de Polignac number, because 63540171 - 2¹⁴ = 63523787 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (63540179) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20190 + ... + 23123.

It is an arithmetic number, because the mean of its divisors is an integer number (7695454).

Almost surely, 2^63540171 is an apocalyptic number.

63540171 is a deficient number, since it is larger than the sum of its proper divisors (28805277).

63540171 is a wasteful number, since it uses less digits than its factorization.

63540171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43482 (or 43479 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 63540171 is about 7971.2088794611. The cubic root of 63540171 is about 399.0397194145.

The spelling of 63540171 in words is "sixty-three million, five hundred forty thousand, one hundred seventy-one".