63820145 has 8 divisors (see below), whose sum is σ = 80615040. Its totient is φ = 48368880.

The previous prime is 63820129. The next prime is 63820157. The reversal of 63820145 is 54102836.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63820145 - 2⁴ = 63820129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335801 + ... + 335990.

It is an arithmetic number, because the mean of its divisors is an integer number (10076880).

Almost surely, 2^63820145 is an apocalyptic number.

It is an amenable number.

63820145 is a deficient number, since it is larger than the sum of its proper divisors (16794895).

63820145 is a wasteful number, since it uses less digits than its factorization.

63820145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671815.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 63820145 is about 7988.7511539664. The cubic root of 63820145 is about 399.6249505380.

The spelling of 63820145 in words is "sixty-three million, eight hundred twenty thousand, one hundred forty-five".