145575271 has 2 divisors, whose sum is σ = 145575272. Its totient is φ = 145575270.

The previous prime is 145575263. The next prime is 145575281. The reversal of 145575271 is 172575541.

It is a weak prime.

It is an emirp because it is prime and its reverse (172575541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145575271 - 2³ = 145575263 is a prime.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 145575271.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145575251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72787635 + 72787636.

It is an arithmetic number, because the mean of its divisors is an integer number (72787636).

Almost surely, 2^145575271 is an apocalyptic number.

145575271 is a deficient number, since it is larger than the sum of its proper divisors (1).

145575271 is an equidigital number, since it uses as much as digits as its factorization.

145575271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 49000, while the sum is 37.

The square root of 145575271 is about 12065.4577617262. The cubic root of 145575271 is about 526.0526375347.

The spelling of 145575271 in words is "one hundred forty-five million, five hundred seventy-five thousand, two hundred seventy-one".