144123431 has 2 divisors, whose sum is σ = 144123432. Its totient is φ = 144123430.

The previous prime is 144123409. The next prime is 144123437. The reversal of 144123431 is 134321441.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144123431 is a prime.

It is a super-2 number, since 2×144123431² = 41543126726423522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144123397 and 144123406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144123437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72061715 + 72061716.

It is an arithmetic number, because the mean of its divisors is an integer number (72061716).

Almost surely, 2^144123431 is an apocalyptic number.

144123431 is a deficient number, since it is larger than the sum of its proper divisors (1).

144123431 is an equidigital number, since it uses as much as digits as its factorization.

144123431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 23.

The square root of 144123431 is about 12005.1418567212. The cubic root of 144123431 is about 524.2979956705.

Adding to 144123431 its reverse (134321441), we get a palindrome (278444872).

The spelling of 144123431 in words is "one hundred forty-four million, one hundred twenty-three thousand, four hundred thirty-one".