63140919 has 4 divisors (see below), whose sum is σ = 84187896. Its totient is φ = 42093944.

The previous prime is 63140887. The next prime is 63140923. The reversal of 63140919 is 91904136.

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

It is a cyclic number.

It is not a de Polignac number, because 63140919 - 2⁵ = 63140887 is a prime.

It is a super-2 number, since 2×63140919² = 7973551304329122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 63140919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63140929) 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, 10523484 + ... + 10523489.

It is an arithmetic number, because the mean of its divisors is an integer number (21046974).

Almost surely, 2^63140919 is an apocalyptic number.

63140919 is a deficient number, since it is larger than the sum of its proper divisors (21046977).

63140919 is a wasteful number, since it uses less digits than its factorization.

63140919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21046976.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 63140919 is about 7946.1260372587. The cubic root of 63140919 is about 398.2021796274.

The spelling of 63140919 in words is "sixty-three million, one hundred forty thousand, nine hundred nineteen".