144563699 has 16 divisors (see below), whose sum is σ = 179667648. Its totient is φ = 113467392.

The previous prime is 144563669. The next prime is 144563711. The reversal of 144563699 is 996365441.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144563699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144563669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12014 + ... + 20819.

It is an arithmetic number, because the mean of its divisors is an integer number (11229228).

Almost surely, 2^144563699 is an apocalyptic number.

144563699 is a deficient number, since it is larger than the sum of its proper divisors (35103949).

144563699 is a wasteful number, since it uses less digits than its factorization.

144563699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32894.

The product of its digits is 699840, while the sum is 47.

The square root of 144563699 is about 12023.4645173511. The cubic root of 144563699 is about 524.8313278253.

The spelling of 144563699 in words is "one hundred forty-four million, five hundred sixty-three thousand, six hundred ninety-nine".