146869 has 4 divisors (see below), whose sum is σ = 147744. Its totient is φ = 145996.

The previous prime is 146857. The next prime is 146891. The reversal of 146869 is 968641.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 146869 - 2⁵ = 146837 is a prime.

It is a super-2 number, since 2×146869² = 43141006322, which contains 22 as substring.

It is a Duffinian number.

146869 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97 + ... + 550.

It is an arithmetic number, because the mean of its divisors is an integer number (36936).

2¹⁴⁶⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

146869 is a deficient number, since it is larger than the sum of its proper divisors (875).

146869 is an equidigital number, since it uses as much as digits as its factorization.

146869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874.

The product of its digits is 10368, while the sum is 34.

The square root of 146869 is about 383.2349149021. The cubic root of 146869 is about 52.7606388999.

The spelling of 146869 in words is "one hundred forty-six thousand, eight hundred sixty-nine".