164215012 has 12 divisors (see below), whose sum is σ = 309482236. Its totient is φ = 75791520.

The previous prime is 164215003. The next prime is 164215013. The reversal of 164215012 is 210512461.

164215012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 85821696 + 78393316 = 9264^2 + 8854^2 .

It is not an unprimeable number, because it can be changed into a prime (164215013) 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, 1578939 + ... + 1579042.

Almost surely, 2^164215012 is an apocalyptic number.

It is an amenable number.

164215012 is a deficient number, since it is larger than the sum of its proper divisors (145267224).

164215012 is a wasteful number, since it uses less digits than its factorization.

164215012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3157998 (or 3157996 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 164215012 is about 12814.6405333899. The cubic root of 164215012 is about 547.6094727683.

Adding to 164215012 its reverse (210512461), we get a palindrome (374727473).

The spelling of 164215012 in words is "one hundred sixty-four million, two hundred fifteen thousand, twelve".