144036666 has 24 divisors (see below), whose sum is σ = 313201044. Its totient is φ = 47839680.

The previous prime is 144036643. The next prime is 144036703. The reversal of 144036666 is 666630441.

144036666 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 143496441 + 540225 = 11979^2 + 735^2 .

It is a super-2 number, since 2×144036666² = 41493122304791112, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 144036666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9181 + ... + 19296.

Almost surely, 2^144036666 is an apocalyptic number.

144036666 is an abundant number, since it is smaller than the sum of its proper divisors (169164378).

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

144036666 is a wasteful number, since it uses less digits than its factorization.

144036666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28766 (or 28763 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 144036666 is about 12001.5276527615. The cubic root of 144036666 is about 524.1927621516.

The spelling of 144036666 in words is "one hundred forty-four million, thirty-six thousand, six hundred sixty-six".