144038399 has 4 divisors (see below), whose sum is σ = 152511264. Its totient is φ = 135565536.

The previous prime is 144038387. The next prime is 144038407. The reversal of 144038399 is 993830441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144038399 - 2⁴ = 144038383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144038309) 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, 4236407 + ... + 4236440.

It is an arithmetic number, because the mean of its divisors is an integer number (38127816).

Almost surely, 2^144038399 is an apocalyptic number.

144038399 is a deficient number, since it is larger than the sum of its proper divisors (8472865).

144038399 is an equidigital number, since it uses as much as digits as its factorization.

144038399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8472864.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 144038399 is about 12001.5998516864. The cubic root of 144038399 is about 524.1948644460.

The spelling of 144038399 in words is "one hundred forty-four million, thirty-eight thousand, three hundred ninety-nine".