145510731539 has 2 divisors, whose sum is σ = 145510731540. Its totient is φ = 145510731538.

The previous prime is 145510731407. The next prime is 145510731571. The reversal of 145510731539 is 935137015541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145510731539 - 2¹² = 145510727443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145510731539.

It is not a weakly prime, because it can be changed into another prime (145510731139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72755365769 + 72755365770.

It is an arithmetic number, because the mean of its divisors is an integer number (72755365770).

Almost surely, 2^145510731539 is an apocalyptic number.

145510731539 is a deficient number, since it is larger than the sum of its proper divisors (1).

145510731539 is an equidigital number, since it uses as much as digits as its factorization.

145510731539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 283500, while the sum is 44.

The spelling of 145510731539 in words is "one hundred forty-five billion, five hundred ten million, seven hundred thirty-one thousand, five hundred thirty-nine".