145434402193 has 2 divisors, whose sum is σ = 145434402194. Its totient is φ = 145434402192.

The previous prime is 145434402167. The next prime is 145434402221. The reversal of 145434402193 is 391204434541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118468821249 + 26965580944 = 344193^2 + 164212^2 .

It is an emirp because it is prime and its reverse (391204434541) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145434402193 is a prime.

It is not a weakly prime, because it can be changed into another prime (145434402143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72717201096 + 72717201097.

It is an arithmetic number, because the mean of its divisors is an integer number (72717201097).

Almost surely, 2^145434402193 is an apocalyptic number.

It is an amenable number.

145434402193 is a deficient number, since it is larger than the sum of its proper divisors (1).

145434402193 is an equidigital number, since it uses as much as digits as its factorization.

145434402193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 145434402193 in words is "one hundred forty-five billion, four hundred thirty-four million, four hundred two thousand, one hundred ninety-three".