144102399 has 16 divisors (see below), whose sum is σ = 222366720. Its totient is φ = 81300960.

The previous prime is 144102379. The next prime is 144102401. The reversal of 144102399 is 993201441.

It is not a de Polignac number, because 144102399 - 2²¹ = 142005247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144102349) 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, 41772 + ... + 45089.

It is an arithmetic number, because the mean of its divisors is an integer number (13897920).

Almost surely, 2^144102399 is an apocalyptic number.

144102399 is a deficient number, since it is larger than the sum of its proper divisors (78264321).

144102399 is an equidigital number, since it uses as much as digits as its factorization.

144102399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86950.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 144102399 is about 12004.2658667659. The cubic root of 144102399 is about 524.2724907456.

The spelling of 144102399 in words is "one hundred forty-four million, one hundred two thousand, three hundred ninety-nine".