144212864 has 16 divisors (see below), whose sum is σ = 287299320. Its totient is φ = 72106368.

The previous prime is 144212863. The next prime is 144212879. The reversal of 144212864 is 468212441.

It is a tau number, because it is divible by the number of its divisors (16).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 144212864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144212863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563204 + ... + 563459.

Almost surely, 2^144212864 is an apocalyptic number.

It is an amenable number.

144212864 is a deficient number, since it is larger than the sum of its proper divisors (143086456).

144212864 is an equidigital number, since it uses as much as digits as its factorization.

144212864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1126677 (or 1126665 counting only the distinct ones).

The product of its digits is 12288, while the sum is 32.

The square root of 144212864 is about 12008.8660580423. The cubic root of 144212864 is about 524.4064208976.

The spelling of 144212864 in words is "one hundred forty-four million, two hundred twelve thousand, eight hundred sixty-four".