144487799 has 8 divisors (see below), whose sum is σ = 152231040. Its totient is φ = 136758456.

The previous prime is 144487787. The next prime is 144487853. The reversal of 144487799 is 997784441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144487799 - 2¹⁶ = 144422263 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144487799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144480799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23192 + ... + 28754.

It is an arithmetic number, because the mean of its divisors is an integer number (19028880).

Almost surely, 2^144487799 is an apocalyptic number.

144487799 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

144487799 is a deficient number, since it is larger than the sum of its proper divisors (7743241).

144487799 is a wasteful number, since it uses less digits than its factorization.

144487799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6949.

The product of its digits is 2032128, while the sum is 53.

The square root of 144487799 is about 12020.3077747618. The cubic root of 144487799 is about 524.7394613528.

The spelling of 144487799 in words is "one hundred forty-four million, four hundred eighty-seven thousand, seven hundred ninety-nine".