144523331 has 2 divisors, whose sum is σ = 144523332. Its totient is φ = 144523330.

The previous prime is 144523321. The next prime is 144523339. The reversal of 144523331 is 133325441.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144523331 is a prime.

It is a super-2 number, since 2×144523331² = 41773986406671122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 144523331.

It is not a weakly prime, because it can be changed into another prime (144523339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72261665 + 72261666.

It is an arithmetic number, because the mean of its divisors is an integer number (72261666).

Almost surely, 2^144523331 is an apocalyptic number.

144523331 is a deficient number, since it is larger than the sum of its proper divisors (1).

144523331 is an equidigital number, since it uses as much as digits as its factorization.

144523331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 26.

The square root of 144523331 is about 12021.7856826679. The cubic root of 144523331 is about 524.7824719380.

Adding to 144523331 its reverse (133325441), we get a palindrome (277848772).

The spelling of 144523331 in words is "one hundred forty-four million, five hundred twenty-three thousand, three hundred thirty-one".