144012164 has 6 divisors (see below), whose sum is σ = 252021294. Its totient is φ = 72006080.

The previous prime is 144012133. The next prime is 144012233. The reversal of 144012164 is 461210441.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 105472900 + 38539264 = 10270^2 + 6208^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18001517 + ... + 18001524.

It is an arithmetic number, because the mean of its divisors is an integer number (42003549).

Almost surely, 2^144012164 is an apocalyptic number.

It is an amenable number.

144012164 is a deficient number, since it is larger than the sum of its proper divisors (108009130).

144012164 is a wasteful number, since it uses less digits than its factorization.

144012164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36003045 (or 36003043 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 144012164 is about 12000.5068226305. The cubic root of 144012164 is about 524.1630370829.

The spelling of 144012164 in words is "one hundred forty-four million, twelve thousand, one hundred sixty-four".