146145599 has 4 divisors (see below), whose sum is σ = 146232240. Its totient is φ = 146058960.

The previous prime is 146145581. The next prime is 146145641. The reversal of 146145599 is 995541641.

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

It is a cyclic number.

It is not a de Polignac number, because 146145599 - 2²⁴ = 129368383 is a prime.

It is a super-2 number, since 2×146145599² = 42717072214137602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146148599) 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, 40739 + ... + 44180.

It is an arithmetic number, because the mean of its divisors is an integer number (36558060).

Almost surely, 2^146145599 is an apocalyptic number.

146145599 is a deficient number, since it is larger than the sum of its proper divisors (86641).

146145599 is an equidigital number, since it uses as much as digits as its factorization.

146145599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86640.

The product of its digits is 194400, while the sum is 44.

The square root of 146145599 is about 12089.0694017364. The cubic root of 146145599 is about 526.7387238285.

The spelling of 146145599 in words is "one hundred forty-six million, one hundred forty-five thousand, five hundred ninety-nine".