145385086999 has 2 divisors, whose sum is σ = 145385087000. Its totient is φ = 145385086998.

The previous prime is 145385086993. The next prime is 145385087047. The reversal of 145385086999 is 999680583541.

It is a weak prime.

It is an emirp because it is prime and its reverse (999680583541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145385086999 - 2²¹ = 145382989847 is a prime.

It is a super-2 number, since 2×145385086999² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145385086993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72692543499 + 72692543500.

It is an arithmetic number, because the mean of its divisors is an integer number (72692543500).

Almost surely, 2^145385086999 is an apocalyptic number.

145385086999 is a deficient number, since it is larger than the sum of its proper divisors (1).

145385086999 is an equidigital number, since it uses as much as digits as its factorization.

145385086999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 83980800, while the sum is 67.

The spelling of 145385086999 in words is "one hundred forty-five billion, three hundred eighty-five million, eighty-six thousand, nine hundred ninety-nine".