144928531 has 8 divisors (see below), whose sum is σ = 158346864. Its totient is φ = 131550720.

The previous prime is 144928529. The next prime is 144928559. The reversal of 144928531 is 135829441.

144928531 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 144928531 - 2¹ = 144928529 is a prime.

It is a super-2 number, since 2×144928531² = 42008558195635922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144928591) 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, 2386 + ... + 17191.

It is an arithmetic number, because the mean of its divisors is an integer number (19793358).

Almost surely, 2^144928531 is an apocalyptic number.

144928531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

144928531 is a deficient number, since it is larger than the sum of its proper divisors (13418333).

144928531 is a wasteful number, since it uses less digits than its factorization.

144928531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20261.

The product of its digits is 34560, while the sum is 37.

The square root of 144928531 is about 12038.6266243289. The cubic root of 144928531 is about 525.2724584270.

The spelling of 144928531 in words is "one hundred forty-four million, nine hundred twenty-eight thousand, five hundred thirty-one".