63145642 has 16 divisors (see below), whose sum is σ = 109368000. Its totient is φ = 26782848.

The previous prime is 63145639. The next prime is 63145661. The reversal of 63145642 is 24654136.

63145642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 21892 + ... + 24607.

It is an arithmetic number, because the mean of its divisors is an integer number (6835500).

Almost surely, 2^63145642 is an apocalyptic number.

63145642 is a deficient number, since it is larger than the sum of its proper divisors (46222358).

63145642 is a wasteful number, since it uses less digits than its factorization.

63145642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46605.

The product of its digits is 17280, while the sum is 31.

The square root of 63145642 is about 7946.4232205439. The cubic root of 63145642 is about 398.2121080121.

Adding to 63145642 its reverse (24654136), we get a palindrome (87799778).

The spelling of 63145642 in words is "sixty-three million, one hundred forty-five thousand, six hundred forty-two".