145247563 has 2 divisors, whose sum is σ = 145247564. Its totient is φ = 145247562.

The previous prime is 145247561. The next prime is 145247569. The reversal of 145247563 is 365742541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145247563 - 2¹ = 145247561 is a prime.

Together with 145247561, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (145247561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72623781 + 72623782.

It is an arithmetic number, because the mean of its divisors is an integer number (72623782).

Almost surely, 2^145247563 is an apocalyptic number.

145247563 is a deficient number, since it is larger than the sum of its proper divisors (1).

145247563 is an equidigital number, since it uses as much as digits as its factorization.

145247563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 37.

The square root of 145247563 is about 12051.8696889736. The cubic root of 145247563 is about 525.6576043744.

The spelling of 145247563 in words is "one hundred forty-five million, two hundred forty-seven thousand, five hundred sixty-three".