64998142 has 8 divisors (see below), whose sum is σ = 106360632. Its totient is φ = 29544600.

The previous prime is 64998091. The next prime is 64998151. The reversal of 64998142 is 24189946.

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

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, 1477209 + ... + 1477252.

It is an arithmetic number, because the mean of its divisors is an integer number (13295079).

Almost surely, 2^64998142 is an apocalyptic number.

64998142 is a deficient number, since it is larger than the sum of its proper divisors (41362490).

64998142 is a wasteful number, since it uses less digits than its factorization.

64998142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2954474.

The product of its digits is 124416, while the sum is 43.

The square root of 64998142 is about 8062.1425192067. The cubic root of 64998142 is about 402.0687447924.

It can be divided in two parts, 6499 and 8142, that added together give a palindrome (14641).

The spelling of 64998142 in words is "sixty-four million, nine hundred ninety-eight thousand, one hundred forty-two".