145414331639 has 2 divisors, whose sum is σ = 145414331640. Its totient is φ = 145414331638.

The previous prime is 145414331597. The next prime is 145414331687. The reversal of 145414331639 is 936133414541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145414331639 - 2¹² = 145414327543 is a prime.

It is a super-2 number, since 2×145414331639² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145414331639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145414331239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72707165819 + 72707165820.

It is an arithmetic number, because the mean of its divisors is an integer number (72707165820).

Almost surely, 2^145414331639 is an apocalyptic number.

145414331639 is a deficient number, since it is larger than the sum of its proper divisors (1).

145414331639 is an equidigital number, since it uses as much as digits as its factorization.

145414331639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 44.

The spelling of 145414331639 in words is "one hundred forty-five billion, four hundred fourteen million, three hundred thirty-one thousand, six hundred thirty-nine".