63119913 has 4 divisors (see below), whose sum is σ = 84159888. Its totient is φ = 42079940.

The previous prime is 63119909. The next prime is 63119939. The reversal of 63119913 is 31991136.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 63119913 - 2² = 63119909 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63119993) 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 in 3 ways as a sum of consecutive naturals, for example, 10519983 + ... + 10519988.

It is an arithmetic number, because the mean of its divisors is an integer number (21039972).

Almost surely, 2^63119913 is an apocalyptic number.

It is an amenable number.

63119913 is a deficient number, since it is larger than the sum of its proper divisors (21039975).

63119913 is a wasteful number, since it uses less digits than its factorization.

63119913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21039974.

The product of its digits is 4374, while the sum is 33.

The square root of 63119913 is about 7944.8041511418. The cubic root of 63119913 is about 398.1580161758.

The spelling of 63119913 in words is "sixty-three million, one hundred nineteen thousand, nine hundred thirteen".