145471 has 2 divisors, whose sum is σ = 145472. Its totient is φ = 145470.

The previous prime is 145463. The next prime is 145477. The reversal of 145471 is 174541.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 145471 - 2³ = 145463 is a prime.

It is a super-3 number, since 3×145471³ = 9235289790966333, which contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72735 + 72736.

It is an arithmetic number, because the mean of its divisors is an integer number (72736).

2¹⁴⁵⁴⁷¹ is an apocalyptic number.

145471 is a deficient number, since it is larger than the sum of its proper divisors (1).

145471 is an equidigital number, since it uses as much as digits as its factorization.

145471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 560, while the sum is 22.

The square root of 145471 is about 381.4066071793. The cubic root of 145471 is about 52.5927009201.

It can be divided in two parts, 145 and 471, that added together give a palindrome (616).

The spelling of 145471 in words is "one hundred forty-five thousand, four hundred seventy-one".