164405012 has 12 divisors (see below), whose sum is σ = 300218016. Its totient is φ = 78628440.

The previous prime is 164404991. The next prime is 164405029. The reversal of 164405012 is 210504461.

164405012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×164405012³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

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, 893414 + ... + 893597.

It is an arithmetic number, because the mean of its divisors is an integer number (25018168).

Almost surely, 2^164405012 is an apocalyptic number.

It is an amenable number.

164405012 is a deficient number, since it is larger than the sum of its proper divisors (135813004).

164405012 is a wasteful number, since it uses less digits than its factorization.

164405012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1787038 (or 1787036 counting only the distinct ones).

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

The square root of 164405012 is about 12822.0517858882. The cubic root of 164405012 is about 547.8205896787.

Adding to 164405012 its reverse (210504461), we get a palindrome (374909473).

The spelling of 164405012 in words is "one hundred sixty-four million, four hundred five thousand, twelve".