63541281 has 8 divisors (see below), whose sum is σ = 84821824. Its totient is φ = 42310800.

The previous prime is 63541273. The next prime is 63541319. The reversal of 63541281 is 18214536.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63541281 - 2³ = 63541273 is a prime.

It is a super-2 number, since 2×63541281² = 8074988782241922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63541211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9445 + ... + 14706.

It is an arithmetic number, because the mean of its divisors is an integer number (10602728).

Almost surely, 2^63541281 is an apocalyptic number.

It is an amenable number.

63541281 is a deficient number, since it is larger than the sum of its proper divisors (21280543).

63541281 is a wasteful number, since it uses less digits than its factorization.

63541281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25031.

The product of its digits is 5760, while the sum is 30.

The square root of 63541281 is about 7971.2785047318. The cubic root of 63541281 is about 399.0420430443.

The spelling of 63541281 in words is "sixty-three million, five hundred forty-one thousand, two hundred eighty-one".