144266981 has 8 divisors (see below), whose sum is σ = 160793280. Its totient is φ = 128634048.

The previous prime is 144266957. The next prime is 144266989. The reversal of 144266981 is 189662441.

144266981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 144266981 - 2²² = 140072677 is a prime.

It is a super-2 number, since 2×144266981² = 41625923613708722, 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 (144266989) 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, 223001 + ... + 223646.

It is an arithmetic number, because the mean of its divisors is an integer number (20099160).

Almost surely, 2^144266981 is an apocalyptic number.

It is an amenable number.

144266981 is a deficient number, since it is larger than the sum of its proper divisors (16526299).

144266981 is a wasteful number, since it uses less digits than its factorization.

144266981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446683.

The product of its digits is 82944, while the sum is 41.

The square root of 144266981 is about 12011.1190569405. The cubic root of 144266981 is about 524.4720085583.

The spelling of 144266981 in words is "one hundred forty-four million, two hundred sixty-six thousand, nine hundred eighty-one".