144343021 has 8 divisors (see below), whose sum is σ = 145691840. Its totient is φ = 142998912.

The previous prime is 144343013. The next prime is 144343027. The reversal of 144343021 is 120343441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144343021 - 2³ = 144343013 is a prime.

It is a super-2 number, since 2×144343021² = 41669815422812882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144342983 and 144343001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144343027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92776 + ... + 94318.

It is an arithmetic number, because the mean of its divisors is an integer number (18211480).

Almost surely, 2^144343021 is an apocalyptic number.

It is an amenable number.

144343021 is a deficient number, since it is larger than the sum of its proper divisors (1348819).

144343021 is a wasteful number, since it uses less digits than its factorization.

144343021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2355.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 144343021 is about 12014.2840402581. The cubic root of 144343021 is about 524.5641383178.

Adding to 144343021 its reverse (120343441), we get a palindrome (264686462).

The spelling of 144343021 in words is "one hundred forty-four million, three hundred forty-three thousand, twenty-one".