144023731 has 2 divisors, whose sum is σ = 144023732. Its totient is φ = 144023730.

The previous prime is 144023729. The next prime is 144023783. The reversal of 144023731 is 137320441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144023731 - 2¹ = 144023729 is a prime.

It is a super-2 number, since 2×144023731² = 41485670182320722, which contains 22 as substring.

Together with 144023729, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 144023696 and 144023705.

It is not a weakly prime, because it can be changed into another prime (144023701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72011865 + 72011866.

It is an arithmetic number, because the mean of its divisors is an integer number (72011866).

Almost surely, 2^144023731 is an apocalyptic number.

144023731 is a deficient number, since it is larger than the sum of its proper divisors (1).

144023731 is an equidigital number, since it uses as much as digits as its factorization.

144023731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 144023731 is about 12000.9887509321. The cubic root of 144023731 is about 524.1770702297.

The spelling of 144023731 in words is "one hundred forty-four million, twenty-three thousand, seven hundred thirty-one".