63402113 has 4 divisors (see below), whose sum is σ = 64948548. Its totient is φ = 61855680.

The previous prime is 63402109. The next prime is 63402121. The reversal of 63402113 is 31120436.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7795264 + 55606849 = 2792^2 + 7457^2 .

It is a cyclic number.

It is not a de Polignac number, because 63402113 - 2² = 63402109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63402103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 773156 + ... + 773237.

It is an arithmetic number, because the mean of its divisors is an integer number (16237137).

Almost surely, 2^63402113 is an apocalyptic number.

It is an amenable number.

63402113 is a deficient number, since it is larger than the sum of its proper divisors (1546435).

63402113 is a wasteful number, since it uses less digits than its factorization.

63402113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546434.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 63402113 is about 7962.5443797821. The cubic root of 63402113 is about 398.7505030408.

Adding to 63402113 its reverse (31120436), we get a palindrome (94522549).

The spelling of 63402113 in words is "sixty-three million, four hundred two thousand, one hundred thirteen".