144031431 has 8 divisors (see below), whose sum is σ = 195190384. Its totient is φ = 94446720.

The previous prime is 144031427. The next prime is 144031439. The reversal of 144031431 is 134130441.

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

It is not a de Polignac number, because 144031431 - 2² = 144031427 is a prime.

It is a super-2 number, since 2×144031431² = 41490106231815522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144031398 and 144031407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144031439) 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, 393346 + ... + 393711.

It is an arithmetic number, because the mean of its divisors is an integer number (24398798).

Almost surely, 2^144031431 is an apocalyptic number.

144031431 is a deficient number, since it is larger than the sum of its proper divisors (51158953).

144031431 is an equidigital number, since it uses as much as digits as its factorization.

144031431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787121.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 144031431 is about 12001.3095535446. The cubic root of 144031431 is about 524.1864114947.

Adding to 144031431 its reverse (134130441), we get a palindrome (278161872).

The spelling of 144031431 in words is "one hundred forty-four million, thirty-one thousand, four hundred thirty-one".