144794279 has 4 divisors (see below), whose sum is σ = 165479184. Its totient is φ = 124109376.

The previous prime is 144794267. The next prime is 144794317. The reversal of 144794279 is 972497441.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144794279 is a prime.

It is a super-2 number, since 2×144794279² = 41930766462259682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144794479) 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, 10342442 + ... + 10342455.

It is an arithmetic number, because the mean of its divisors is an integer number (41369796).

Almost surely, 2^144794279 is an apocalyptic number.

144794279 is a deficient number, since it is larger than the sum of its proper divisors (20684905).

144794279 is an equidigital number, since it uses as much as digits as its factorization.

144794279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20684904.

The product of its digits is 508032, while the sum is 47.

The square root of 144794279 is about 12033.0494472515. The cubic root of 144794279 is about 525.1102160136.

The spelling of 144794279 in words is "one hundred forty-four million, seven hundred ninety-four thousand, two hundred seventy-nine".