144419287 has 4 divisors (see below), whose sum is σ = 145821520. Its totient is φ = 143017056.

The previous prime is 144419279. The next prime is 144419377. The reversal of 144419287 is 782914441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 782914441 = 173 ⋅4525517.

It is a cyclic number.

It is not a de Polignac number, because 144419287 - 2³ = 144419279 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 (144419207) 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, 700962 + ... + 701167.

It is an arithmetic number, because the mean of its divisors is an integer number (36455380).

Almost surely, 2^144419287 is an apocalyptic number.

144419287 is a deficient number, since it is larger than the sum of its proper divisors (1402233).

144419287 is a wasteful number, since it uses less digits than its factorization.

144419287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402232.

The product of its digits is 64512, while the sum is 40.

The square root of 144419287 is about 12017.4575930186. The cubic root of 144419287 is about 524.6565094034.

The spelling of 144419287 in words is "one hundred forty-four million, four hundred nineteen thousand, two hundred eighty-seven".