144420853 has 4 divisors (see below), whose sum is σ = 144454240. Its totient is φ = 144387468.

The previous prime is 144420851. The next prime is 144420869. The reversal of 144420853 is 358024441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 358024441 = 131 ⋅2733011.

It is a cyclic number.

It is not a de Polignac number, because 144420853 - 2¹ = 144420851 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 (144420851) 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, 9033 + ... + 19246.

It is an arithmetic number, because the mean of its divisors is an integer number (36113560).

Almost surely, 2^144420853 is an apocalyptic number.

It is an amenable number.

144420853 is a deficient number, since it is larger than the sum of its proper divisors (33387).

144420853 is an equidigital number, since it uses as much as digits as its factorization.

144420853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33386.

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 144420853 is about 12017.5227480542. The cubic root of 144420853 is about 524.6584057547.

The spelling of 144420853 in words is "one hundred forty-four million, four hundred twenty thousand, eight hundred fifty-three".