64812542 has 8 divisors (see below), whose sum is σ = 98390376. Its totient is φ = 32015752.

The previous prime is 64812541. The next prime is 64812557. The reversal of 64812542 is 24521846.

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 = 64812499 and 64812508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64812541) 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, 195053 + ... + 195384.

It is an arithmetic number, because the mean of its divisors is an integer number (12298797).

Almost surely, 2^64812542 is an apocalyptic number.

64812542 is a deficient number, since it is larger than the sum of its proper divisors (33577834).

64812542 is a wasteful number, since it uses less digits than its factorization.

64812542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390522.

The product of its digits is 15360, while the sum is 32.

The square root of 64812542 is about 8050.6237025463. The cubic root of 64812542 is about 401.6856820445.

The spelling of 64812542 in words is "sixty-four million, eight hundred twelve thousand, five hundred forty-two".