144591873 has 4 divisors (see below), whose sum is σ = 192789168. Its totient is φ = 96394580.

The previous prime is 144591859. The next prime is 144591901. The reversal of 144591873 is 378195441.

It is a happy number.

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 144591873 - 2⁴ = 144591857 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (144591833) 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, 24098643 + ... + 24098648.

It is an arithmetic number, because the mean of its divisors is an integer number (48197292).

Almost surely, 2^144591873 is an apocalyptic number.

It is an amenable number.

144591873 is a deficient number, since it is larger than the sum of its proper divisors (48197295).

144591873 is an equidigital number, since it uses as much as digits as its factorization.

144591873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48197294.

The product of its digits is 120960, while the sum is 42.

The square root of 144591873 is about 12024.6360859695. The cubic root of 144591873 is about 524.8654203798.

The spelling of 144591873 in words is "one hundred forty-four million, five hundred ninety-one thousand, eight hundred seventy-three".