144331473 has 16 divisors (see below), whose sum is σ = 226086336. Its totient is φ = 80744640.

The previous prime is 144331471. The next prime is 144331483. The reversal of 144331473 is 374133441.

It is not a de Polignac number, because 144331473 - 2¹ = 144331471 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 144331473.

It is not an unprimeable number, because it can be changed into a prime (144331471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167790 + ... + 168647.

It is an arithmetic number, because the mean of its divisors is an integer number (14130396).

Almost surely, 2^144331473 is an apocalyptic number.

144331473 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

144331473 is a deficient number, since it is larger than the sum of its proper divisors (81754863).

144331473 is a wasteful number, since it uses less digits than its factorization.

144331473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336464.

The product of its digits is 12096, while the sum is 30.

The square root of 144331473 is about 12013.8034360481. The cubic root of 144331473 is about 524.5501488914.

The spelling of 144331473 in words is "one hundred forty-four million, three hundred thirty-one thousand, four hundred seventy-three".