64632142 has 8 divisors (see below), whose sum is σ = 97060176. Its totient is φ = 32278752.

The previous prime is 64632137. The next prime is 64632149. The reversal of 64632142 is 24123646.

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

It is a self number, because there is not a number n which added to its sum of digits gives 64632142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64632149) 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, 16443 + ... + 19990.

It is an arithmetic number, because the mean of its divisors is an integer number (12132522).

Almost surely, 2^64632142 is an apocalyptic number.

64632142 is a deficient number, since it is larger than the sum of its proper divisors (32428034).

64632142 is a wasteful number, since it uses less digits than its factorization.

64632142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37322.

The product of its digits is 6912, while the sum is 28.

The square root of 64632142 is about 8039.4117944039. The cubic root of 64632142 is about 401.3126501619.

Adding to 64632142 its reverse (24123646), we get a palindrome (88755788).

The spelling of 64632142 in words is "sixty-four million, six hundred thirty-two thousand, one hundred forty-two".