145134877171 has 2 divisors, whose sum is σ = 145134877172. Its totient is φ = 145134877170.

The previous prime is 145134877163. The next prime is 145134877247. The reversal of 145134877171 is 171778431541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145134877171 - 2³ = 145134877163 is a prime.

It is not a weakly prime, because it can be changed into another prime (145134877871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72567438585 + 72567438586.

It is an arithmetic number, because the mean of its divisors is an integer number (72567438586).

Almost surely, 2^145134877171 is an apocalyptic number.

145134877171 is a deficient number, since it is larger than the sum of its proper divisors (1).

145134877171 is an equidigital number, since it uses as much as digits as its factorization.

145134877171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 658560, while the sum is 49.

The spelling of 145134877171 in words is "one hundred forty-five billion, one hundred thirty-four million, eight hundred seventy-seven thousand, one hundred seventy-one".