63148561 has 4 divisors (see below), whose sum is σ = 72169792. Its totient is φ = 54127332.

The previous prime is 63148549. The next prime is 63148583. The reversal of 63148561 is 16584136.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 63148561 - 2⁷ = 63148433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63148361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4510605 + ... + 4510618.

It is an arithmetic number, because the mean of its divisors is an integer number (18042448).

Almost surely, 2^63148561 is an apocalyptic number.

It is an amenable number.

63148561 is a deficient number, since it is larger than the sum of its proper divisors (9021231).

63148561 is an equidigital number, since it uses as much as digits as its factorization.

63148561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9021230.

The product of its digits is 17280, while the sum is 34.

The square root of 63148561 is about 7946.6068859608. The cubic root of 63148561 is about 398.2182438973.

The spelling of 63148561 in words is "sixty-three million, one hundred forty-eight thousand, five hundred sixty-one".