145727563 has 4 divisors (see below), whose sum is σ = 152063568. Its totient is φ = 139391560.

The previous prime is 145727551. The next prime is 145727567. The reversal of 145727563 is 365727541.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145727563 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145727567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3167968 + ... + 3168013.

It is an arithmetic number, because the mean of its divisors is an integer number (38015892).

Almost surely, 2^145727563 is an apocalyptic number.

145727563 is a deficient number, since it is larger than the sum of its proper divisors (6336005).

145727563 is an equidigital number, since it uses as much as digits as its factorization.

145727563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6336004.

The product of its digits is 176400, while the sum is 40.

The square root of 145727563 is about 12071.7671862905. The cubic root of 145727563 is about 526.2360150349.

The spelling of 145727563 in words is "one hundred forty-five million, seven hundred twenty-seven thousand, five hundred sixty-three".