145447663 has 2 divisors, whose sum is σ = 145447664. Its totient is φ = 145447662.

The previous prime is 145447633. The next prime is 145447667. The reversal of 145447663 is 366744541.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145447663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145447667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72723831 + 72723832.

It is an arithmetic number, because the mean of its divisors is an integer number (72723832).

Almost surely, 2^145447663 is an apocalyptic number.

145447663 is a deficient number, since it is larger than the sum of its proper divisors (1).

145447663 is an equidigital number, since it uses as much as digits as its factorization.

145447663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 40.

The square root of 145447663 is about 12060.1684482432. The cubic root of 145447663 is about 525.8988839736.

The spelling of 145447663 in words is "one hundred forty-five million, four hundred forty-seven thousand, six hundred sixty-three".