65151222 has 16 divisors (see below), whose sum is σ = 132511680. Its totient is φ = 21348872.

The previous prime is 65151211. The next prime is 65151271. The reversal of 65151222 is 22215156.

It is a happy number.

65151222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 65151192 and 65151201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91668 + ... + 92375.

It is an arithmetic number, because the mean of its divisors is an integer number (8281980).

Almost surely, 2^65151222 is an apocalyptic number.

65151222 is an abundant number, since it is smaller than the sum of its proper divisors (67360458).

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

65151222 is a wasteful number, since it uses less digits than its factorization.

65151222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184107.

The product of its digits is 1200, while the sum is 24.

The square root of 65151222 is about 8071.6306902633. The cubic root of 65151222 is about 402.3841406176.

Adding to 65151222 its reverse (22215156), we get a palindrome (87366378).

The spelling of 65151222 in words is "sixty-five million, one hundred fifty-one thousand, two hundred twenty-two".