144431573 has 24 divisors (see below), whose sum is σ = 175498848. Its totient is φ = 117180000.

The previous prime is 144431549. The next prime is 144431593. The reversal of 144431573 is 375134441.

It is not a de Polignac number, because 144431573 - 2⁶ = 144431509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144431503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136898 + ... + 137948.

It is an arithmetic number, because the mean of its divisors is an integer number (7312452).

Almost surely, 2^144431573 is an apocalyptic number.

144431573 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

144431573 is a deficient number, since it is larger than the sum of its proper divisors (31067275).

144431573 is a wasteful number, since it uses less digits than its factorization.

144431573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137 (or 1106 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 144431573 is about 12017.9687551599. The cubic root of 144431573 is about 524.6713867955.

The spelling of 144431573 in words is "one hundred forty-four million, four hundred thirty-one thousand, five hundred seventy-three".