146399 has 4 divisors (see below), whose sum is σ = 159720. Its totient is φ = 133080.

The previous prime is 146389. The next prime is 146407. The reversal of 146399 is 993641.

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 146399 - 2⁴ = 146383 is a prime.

It is a super-5 number, since 5×146399⁵ (a number of 27 digits) contains 55555 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146309) 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, 6644 + ... + 6665.

It is an arithmetic number, because the mean of its divisors is an integer number (39930).

2¹⁴⁶³⁹⁹ is an apocalyptic number.

146399 is a deficient number, since it is larger than the sum of its proper divisors (13321).

146399 is a wasteful number, since it uses less digits than its factorization.

146399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13320.

The product of its digits is 5832, while the sum is 32.

The square root of 146399 is about 382.6212226210. The cubic root of 146399 is about 52.7042984443.

It can be divided in two parts, 146 and 399, that added together give a palindrome (545).

The spelling of 146399 in words is "one hundred forty-six thousand, three hundred ninety-nine".