144424521653 has 4 divisors (see below), whose sum is σ = 144426393888. Its totient is φ = 144422649420.

The previous prime is 144424521629. The next prime is 144424521697. The reversal of 144424521653 is 356125424441.

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.

It is a cyclic number.

It is not a de Polignac number, because 144424521653 - 2³⁰ = 143350779829 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144424521653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144424521623) 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, 815201 + ... + 976422.

It is an arithmetic number, because the mean of its divisors is an integer number (36106598472).

Almost surely, 2^144424521653 is an apocalyptic number.

It is an amenable number.

144424521653 is a deficient number, since it is larger than the sum of its proper divisors (1872235).

144424521653 is an equidigital number, since it uses as much as digits as its factorization.

144424521653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872234.

The product of its digits is 460800, while the sum is 41.

The spelling of 144424521653 in words is "one hundred forty-four billion, four hundred twenty-four million, five hundred twenty-one thousand, six hundred fifty-three".