65140222 has 16 divisors (see below), whose sum is σ = 111922272. Its totient is φ = 27853920.

The previous prime is 65140219. The next prime is 65140223. The reversal of 65140222 is 22204156.

It is a junction number, because it is equal to n+sod(n) for n = 65140193 and 65140202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65140223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1408 + ... + 11500.

It is an arithmetic number, because the mean of its divisors is an integer number (6995142).

Almost surely, 2^65140222 is an apocalyptic number.

65140222 is a deficient number, since it is larger than the sum of its proper divisors (46782050).

65140222 is a wasteful number, since it uses less digits than its factorization.

65140222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10563.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 65140222 is about 8070.9492626332. The cubic root of 65140222 is about 402.3614934360.

Adding to 65140222 its reverse (22204156), we get a palindrome (87344378).

The spelling of 65140222 in words is "sixty-five million, one hundred forty thousand, two hundred twenty-two".