64807142 has 8 divisors (see below), whose sum is σ = 99581832. Its totient is φ = 31613200.

The previous prime is 64807139. The next prime is 64807151. The reversal of 64807142 is 24170846.

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

It is a junction number, because it is equal to n+sod(n) for n = 64807099 and 64807108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395084 + ... + 395247.

It is an arithmetic number, because the mean of its divisors is an integer number (12447729).

Almost surely, 2^64807142 is an apocalyptic number.

64807142 is a deficient number, since it is larger than the sum of its proper divisors (34774690).

64807142 is a wasteful number, since it uses less digits than its factorization.

64807142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790374.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 64807142 is about 8050.2883178182. The cubic root of 64807142 is about 401.6745259582.

Adding to 64807142 its reverse (24170846), we get a palindrome (88977988).

The spelling of 64807142 in words is "sixty-four million, eight hundred seven thousand, one hundred forty-two".