145599418 has 4 divisors (see below), whose sum is σ = 218399130. Its totient is φ = 72799708.

The previous prime is 145599409. The next prime is 145599437. The reversal of 145599418 is 814995541.

It is a happy number.

145599418 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 76160529 + 69438889 = 8727^2 + 8333^2 .

It is a super-3 number, since 3×145599418³ (a number of 25 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36399853 + ... + 36399856.

Almost surely, 2^145599418 is an apocalyptic number.

145599418 is a deficient number, since it is larger than the sum of its proper divisors (72799712).

145599418 is an equidigital number, since it uses as much as digits as its factorization.

145599418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72799711.

The product of its digits is 259200, while the sum is 46.

The square root of 145599418 is about 12066.4583867844. The cubic root of 145599418 is about 526.0817218947.

The spelling of 145599418 in words is "one hundred forty-five million, five hundred ninety-nine thousand, four hundred eighteen".