144195431 has 8 divisors (see below), whose sum is σ = 145117200. Its totient is φ = 143277120.

The previous prime is 144195421. The next prime is 144195439. The reversal of 144195431 is 134591441.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144195431 is a prime.

It is a super-2 number, since 2×144195431² = 41584644642551522, 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 (144195439) 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, 173525 + ... + 174353.

It is an arithmetic number, because the mean of its divisors is an integer number (18139650).

Almost surely, 2^144195431 is an apocalyptic number.

144195431 is a deficient number, since it is larger than the sum of its proper divisors (921769).

144195431 is an equidigital number, since it uses as much as digits as its factorization.

144195431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1729.

The product of its digits is 8640, while the sum is 32.

The square root of 144195431 is about 12008.1401973828. The cubic root of 144195431 is about 524.3852892979.

The spelling of 144195431 in words is "one hundred forty-four million, one hundred ninety-five thousand, four hundred thirty-one".