144959891 has 8 divisors (see below), whose sum is σ = 148270080. Its totient is φ = 141659208.

The previous prime is 144959861. The next prime is 144959897. The reversal of 144959891 is 198959441.

144959891 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 144959891 - 2¹⁸ = 144697747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144959897) 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, 35030 + ... + 38948.

It is an arithmetic number, because the mean of its divisors is an integer number (18533760).

Almost surely, 2^144959891 is an apocalyptic number.

144959891 is a deficient number, since it is larger than the sum of its proper divisors (3310189).

144959891 is an equidigital number, since it uses as much as digits as its factorization.

144959891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4753.

The product of its digits is 466560, while the sum is 50.

The square root of 144959891 is about 12039.9290280300. The cubic root of 144959891 is about 525.3103422865.

The spelling of 144959891 in words is "one hundred forty-four million, nine hundred fifty-nine thousand, eight hundred ninety-one".