144856499 has 4 divisors (see below), whose sum is σ = 145061520. Its totient is φ = 144651480.

The previous prime is 144856483. The next prime is 144856511. The reversal of 144856499 is 994658441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 994658441 = 7 ⋅142094063.

It is a cyclic number.

It is not a de Polignac number, because 144856499 - 2⁴ = 144856483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144856409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101447 + ... + 102864.

It is an arithmetic number, because the mean of its divisors is an integer number (36265380).

Almost surely, 2^144856499 is an apocalyptic number.

144856499 is a deficient number, since it is larger than the sum of its proper divisors (205021).

144856499 is an equidigital number, since it uses as much as digits as its factorization.

144856499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205020.

The product of its digits is 1244160, while the sum is 50.

The square root of 144856499 is about 12035.6345491212. The cubic root of 144856499 is about 525.1854208239.

The spelling of 144856499 in words is "one hundred forty-four million, eight hundred fifty-six thousand, four hundred ninety-nine".