63115401 has 4 divisors (see below), whose sum is σ = 84153872. Its totient is φ = 42076932.

The previous prime is 63115399. The next prime is 63115447. The reversal of 63115401 is 10451136.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 63115401 - 2¹ = 63115399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63115901) 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, 10519231 + ... + 10519236.

It is an arithmetic number, because the mean of its divisors is an integer number (21038468).

Almost surely, 2^63115401 is an apocalyptic number.

It is an amenable number.

63115401 is a deficient number, since it is larger than the sum of its proper divisors (21038471).

63115401 is a wasteful number, since it uses less digits than its factorization.

63115401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21038470.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 63115401 is about 7944.5201868961. The cubic root of 63115401 is about 398.1485287748.

Adding to 63115401 its reverse (10451136), we get a palindrome (73566537).

The spelling of 63115401 in words is "sixty-three million, one hundred fifteen thousand, four hundred one".