145331442439 has 2 divisors, whose sum is σ = 145331442440. Its totient is φ = 145331442438.

The previous prime is 145331442397. The next prime is 145331442467. The reversal of 145331442439 is 934244133541.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145331442439 - 2³⁵ = 110971704071 is a prime.

It is a super-2 number, since 2×145331442439² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145331442395 and 145331442404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145331445439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72665721219 + 72665721220.

It is an arithmetic number, because the mean of its divisors is an integer number (72665721220).

Almost surely, 2^145331442439 is an apocalyptic number.

145331442439 is a deficient number, since it is larger than the sum of its proper divisors (1).

145331442439 is an equidigital number, since it uses as much as digits as its factorization.

145331442439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 43.

The spelling of 145331442439 in words is "one hundred forty-five billion, three hundred thirty-one million, four hundred forty-two thousand, four hundred thirty-nine".