145564582 has 4 divisors (see below), whose sum is σ = 218346876. Its totient is φ = 72782290.

The previous prime is 145564579. The next prime is 145564603. The reversal of 145564582 is 285465541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 285465541 = 59 ⋅4838399.

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 congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 36391144 + ... + 36391147.

It is an arithmetic number, because the mean of its divisors is an integer number (54586719).

Almost surely, 2^145564582 is an apocalyptic number.

145564582 is a deficient number, since it is larger than the sum of its proper divisors (72782294).

145564582 is an equidigital number, since it uses as much as digits as its factorization.

145564582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72782293.

The product of its digits is 192000, while the sum is 40.

The square root of 145564582 is about 12065.0147948521. The cubic root of 145564582 is about 526.0397619178.

The spelling of 145564582 in words is "one hundred forty-five million, five hundred sixty-four thousand, five hundred eighty-two".