144331699 has 4 divisors (see below), whose sum is σ = 144392536. Its totient is φ = 144270864.

The previous prime is 144331687. The next prime is 144331721. The reversal of 144331699 is 996133441.

144331699 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 996133441 = 29 ⋅34349429.

It is a cyclic number.

It is not a de Polignac number, because 144331699 - 2¹¹ = 144329651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144331399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26709 + ... + 31654.

It is an arithmetic number, because the mean of its divisors is an integer number (36098134).

Almost surely, 2^144331699 is an apocalyptic number.

144331699 is a deficient number, since it is larger than the sum of its proper divisors (60837).

144331699 is an equidigital number, since it uses as much as digits as its factorization.

144331699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60836.

The product of its digits is 69984, while the sum is 40.

The square root of 144331699 is about 12013.8128418916. The cubic root of 144331699 is about 524.5504226784.

The spelling of 144331699 in words is "one hundred forty-four million, three hundred thirty-one thousand, six hundred ninety-nine".