65672142 has 16 divisors (see below), whose sum is σ = 131870592. Its totient is φ = 21803000.

The previous prime is 65672111. The next prime is 65672143. The reversal of 65672142 is 24127656.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65672143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20298 + ... + 23309.

It is an arithmetic number, because the mean of its divisors is an integer number (8241912).

Almost surely, 2^65672142 is an apocalyptic number.

65672142 is an abundant number, since it is smaller than the sum of its proper divisors (66198450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65672142 is a wasteful number, since it uses less digits than its factorization.

65672142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43863.

The product of its digits is 20160, while the sum is 33.

The square root of 65672142 is about 8103.8350180640. The cubic root of 65672142 is about 403.4537228366.

Adding to 65672142 its reverse (24127656), we get a palindrome (89799798).

The spelling of 65672142 in words is "sixty-five million, six hundred seventy-two thousand, one hundred forty-two".