145144426438 has 16 divisors (see below), whose sum is σ = 245699030160. Its totient is φ = 63699748000.

The previous prime is 145144426393. The next prime is 145144426439. The reversal of 145144426438 is 834624441541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145144426439) 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, 113748913 + ... + 113750188.

It is an arithmetic number, because the mean of its divisors is an integer number (15356189385).

Almost surely, 2^145144426438 is an apocalyptic number.

145144426438 is a deficient number, since it is larger than the sum of its proper divisors (100554603722).

145144426438 is a wasteful number, since it uses less digits than its factorization.

145144426438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227499143.

The product of its digits is 1474560, while the sum is 46.

Adding to 145144426438 its reverse (834624441541), we get a palindrome (979768867979).

The spelling of 145144426438 in words is "one hundred forty-five billion, one hundred forty-four million, four hundred twenty-six thousand, four hundred thirty-eight".