145205199323 has 2 divisors, whose sum is σ = 145205199324. Its totient is φ = 145205199322.

The previous prime is 145205199319. The next prime is 145205199371. The reversal of 145205199323 is 323991502541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145205199323 - 2² = 145205199319 is a prime.

It is a super-3 number, since 3×145205199323³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (145205199383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72602599661 + 72602599662.

It is an arithmetic number, because the mean of its divisors is an integer number (72602599662).

Almost surely, 2^145205199323 is an apocalyptic number.

145205199323 is a deficient number, since it is larger than the sum of its proper divisors (1).

145205199323 is an equidigital number, since it uses as much as digits as its factorization.

145205199323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 291600, while the sum is 44.

The spelling of 145205199323 in words is "one hundred forty-five billion, two hundred five million, one hundred ninety-nine thousand, three hundred twenty-three".