63481401 has 10 divisors (see below), whose sum is σ = 94830362. Its totient is φ = 42320880.

The previous prime is 63481399. The next prime is 63481409. The reversal of 63481401 is 10418436.

63481401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 57836025 + 5645376 = 7605^2 + 2376^2 .

It is not a de Polignac number, because 63481401 - 2¹ = 63481399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63481409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 391780 + ... + 391941.

Almost surely, 2^63481401 is an apocalyptic number.

It is an amenable number.

63481401 is a deficient number, since it is larger than the sum of its proper divisors (31348961).

63481401 is an equidigital number, since it uses as much as digits as its factorization.

63481401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783733 (or 783724 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 63481401 is about 7967.5216347369. The cubic root of 63481401 is about 398.9166539690.

Adding to 63481401 its reverse (10418436), we get a palindrome (73899837).

The spelling of 63481401 in words is "sixty-three million, four hundred eighty-one thousand, four hundred one".