144919879 has 4 divisors (see below), whose sum is σ = 156067576. Its totient is φ = 133772184.

The previous prime is 144919829. The next prime is 144919889. The reversal of 144919879 is 978919441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 978919441 = 97 ⋅10091953.

It is not a de Polignac number, because 144919879 - 2¹⁵ = 144887111 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 (144919829) 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, 5573829 + ... + 5573854.

It is an arithmetic number, because the mean of its divisors is an integer number (39016894).

Almost surely, 2^144919879 is an apocalyptic number.

144919879 is a deficient number, since it is larger than the sum of its proper divisors (11147697).

144919879 is a wasteful number, since it uses less digits than its factorization.

144919879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11147696.

The product of its digits is 653184, while the sum is 52.

The square root of 144919879 is about 12038.2672756506. The cubic root of 144919879 is about 525.2620055790.

The spelling of 144919879 in words is "one hundred forty-four million, nine hundred nineteen thousand, eight hundred seventy-nine".