145463471 has 2 divisors, whose sum is σ = 145463472. Its totient is φ = 145463470.

The previous prime is 145463447. The next prime is 145463489. The reversal of 145463471 is 174364541.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145463471 is a prime.

It is a super-3 number, since 3×145463471³ (a number of 25 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145463401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72731735 + 72731736.

It is an arithmetic number, because the mean of its divisors is an integer number (72731736).

Almost surely, 2^145463471 is an apocalyptic number.

145463471 is a deficient number, since it is larger than the sum of its proper divisors (1).

145463471 is an equidigital number, since it uses as much as digits as its factorization.

145463471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 35.

The square root of 145463471 is about 12060.8238110006. The cubic root of 145463471 is about 525.9179357485.

The spelling of 145463471 in words is "one hundred forty-five million, four hundred sixty-three thousand, four hundred seventy-one".