63115013 has 16 divisors (see below), whose sum is σ = 72589440. Its totient is φ = 54419904.

The previous prime is 63115009. The next prime is 63115027. The reversal of 63115013 is 31051136.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 63115013 - 2² = 63115009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63135013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10403 + ... + 15311.

It is an arithmetic number, because the mean of its divisors is an integer number (4536840).

Almost surely, 2^63115013 is an apocalyptic number.

It is an amenable number.

63115013 is a deficient number, since it is larger than the sum of its proper divisors (9474427).

63115013 is a wasteful number, since it uses less digits than its factorization.

63115013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4988.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 63115013 is about 7944.4957675110. The cubic root of 63115013 is about 398.1477129045.

Adding to 63115013 its reverse (31051136), we get a palindrome (94166149).

The spelling of 63115013 in words is "sixty-three million, one hundred fifteen thousand, thirteen".