64215122 has 8 divisors (see below), whose sum is σ = 96747696. Its totient is φ = 31965892.

The previous prime is 64215101. The next prime is 64215133. The reversal of 64215122 is 22151246.

It is a happy number.

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

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, 70268 + ... + 71175.

It is an arithmetic number, because the mean of its divisors is an integer number (12093462).

Almost surely, 2^64215122 is an apocalyptic number.

64215122 is a deficient number, since it is larger than the sum of its proper divisors (32532574).

64215122 is a wasteful number, since it uses less digits than its factorization.

64215122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141672.

The product of its digits is 960, while the sum is 23.

The square root of 64215122 is about 8013.4338457368. The cubic root of 64215122 is about 400.4476696262.

Adding to 64215122 its reverse (22151246), we get a palindrome (86366368).

The spelling of 64215122 in words is "sixty-four million, two hundred fifteen thousand, one hundred twenty-two".