145583618 has 8 divisors (see below), whose sum is σ = 218731212. Its totient is φ = 72673216.

The previous prime is 145583617. The next prime is 145583623. The reversal of 145583618 is 816385541.

It can be written as a sum of positive squares in 2 ways, for example, as 93064609 + 52519009 = 9647^2 + 7247^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (145583617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57755 + ... + 60222.

Almost surely, 2^145583618 is an apocalyptic number.

145583618 is a deficient number, since it is larger than the sum of its proper divisors (73147594).

145583618 is a wasteful number, since it uses less digits than its factorization.

145583618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118596.

The product of its digits is 115200, while the sum is 41.

The square root of 145583618 is about 12065.8036615884. The cubic root of 145583618 is about 526.0626916174.

The spelling of 145583618 in words is "one hundred forty-five million, five hundred eighty-three thousand, six hundred eighteen".