144431233 has 8 divisors (see below), whose sum is σ = 150464160. Its totient is φ = 138517920.

The previous prime is 144431227. The next prime is 144431257. The reversal of 144431233 is 332134441.

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 144431233 - 2¹⁷ = 144300161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144431198 and 144431207.

It is not an unprimeable number, because it can be changed into a prime (144431633) 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, 27435 + ... + 32272.

It is an arithmetic number, because the mean of its divisors is an integer number (18808020).

Almost surely, 2^144431233 is an apocalyptic number.

It is an amenable number.

144431233 is a deficient number, since it is larger than the sum of its proper divisors (6032927).

144431233 is an equidigital number, since it uses as much as digits as its factorization.

144431233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59807.

The product of its digits is 3456, while the sum is 25.

The square root of 144431233 is about 12017.9546096663. The cubic root of 144431233 is about 524.6709750933.

Adding to 144431233 its reverse (332134441), we get a palindrome (476565674).

The spelling of 144431233 in words is "one hundred forty-four million, four hundred thirty-one thousand, two hundred thirty-three".