63195442 has 4 divisors (see below), whose sum is σ = 94793166. Its totient is φ = 31597720.

The previous prime is 63195359. The next prime is 63195449. The reversal of 63195442 is 24459136.

It is a happy number.

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., 53012961 + 10182481 = 7281^2 + 3191^2 .

It is a junction number, because it is equal to n+sod(n) for n = 63195398 and 63195407.

It is not an unprimeable number, because it can be changed into a prime (63195449) 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 as a sum of consecutive naturals, namely, 15798859 + ... + 15798862.

Almost surely, 2^63195442 is an apocalyptic number.

63195442 is a deficient number, since it is larger than the sum of its proper divisors (31597724).

63195442 is a wasteful number, since it uses less digits than its factorization.

63195442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31597723.

The product of its digits is 25920, while the sum is 34.

The square root of 63195442 is about 7949.5560882354. The cubic root of 63195442 is about 398.3167642289.

The spelling of 63195442 in words is "sixty-three million, one hundred ninety-five thousand, four hundred forty-two".