63161642 has 4 divisors (see below), whose sum is σ = 94742466. Its totient is φ = 31580820.

The previous prime is 63161633. The next prime is 63161653. The reversal of 63161642 is 24616136.

It is a happy number.

63161642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 40589641 + 22572001 = 6371^2 + 4751^2 .

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 as a sum of consecutive naturals, namely, 15790409 + ... + 15790412.

Almost surely, 2^63161642 is an apocalyptic number.

63161642 is a deficient number, since it is larger than the sum of its proper divisors (31580824).

63161642 is a wasteful number, since it uses less digits than its factorization.

63161642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31580823.

The product of its digits is 5184, while the sum is 29.

The square root of 63161642 is about 7947.4298990303. The cubic root of 63161642 is about 398.2457384969.

Adding to 63161642 its reverse (24616136), we get a palindrome (87777778).

The spelling of 63161642 in words is "sixty-three million, one hundred sixty-one thousand, six hundred forty-two".