145305371 has 2 divisors, whose sum is σ = 145305372. Its totient is φ = 145305370.

The previous prime is 145305343. The next prime is 145305389. The reversal of 145305371 is 173503541.

145305371 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (173503541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145305371 - 2²⁶ = 78196507 is a prime.

It is a super-2 number, since 2×145305371² = 42227301682895282, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (145305971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72652685 + 72652686.

It is an arithmetic number, because the mean of its divisors is an integer number (72652686).

Almost surely, 2^145305371 is an apocalyptic number.

145305371 is a deficient number, since it is larger than the sum of its proper divisors (1).

145305371 is an equidigital number, since it uses as much as digits as its factorization.

145305371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 145305371 is about 12054.2677504691. The cubic root of 145305371 is about 525.7273317275.

The spelling of 145305371 in words is "one hundred forty-five million, three hundred five thousand, three hundred seventy-one".