144235613 has 2 divisors, whose sum is σ = 144235614. Its totient is φ = 144235612.

The previous prime is 144235607. The next prime is 144235639. The reversal of 144235613 is 316532441.

144235613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131859289 + 12376324 = 11483^2 + 3518^2 .

It is an emirp because it is prime and its reverse (316532441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144235613 - 2¹² = 144231517 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144235643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72117806 + 72117807.

It is an arithmetic number, because the mean of its divisors is an integer number (72117807).

Almost surely, 2^144235613 is an apocalyptic number.

It is an amenable number.

144235613 is a deficient number, since it is larger than the sum of its proper divisors (1).

144235613 is an equidigital number, since it uses as much as digits as its factorization.

144235613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 29.

The square root of 144235613 is about 12009.8131958828. The cubic root of 144235613 is about 524.4339937833.

The spelling of 144235613 in words is "one hundred forty-four million, two hundred thirty-five thousand, six hundred thirteen".