146401 has 4 divisors (see below), whose sum is σ = 147204. Its totient is φ = 145600.

The previous prime is 146389. The next prime is 146407. The reversal of 146401 is 104641.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 104641 = 269 ⋅389.

It can be written as a sum of positive squares in 2 ways, for example, as 70225 + 76176 = 265^2 + 276^2 .

It is a cyclic number.

It is not a de Polignac number, because 146401 - 2⁵ = 146369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146407) 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, 21 + ... + 541.

It is an arithmetic number, because the mean of its divisors is an integer number (36801).

2¹⁴⁶⁴⁰¹ is an apocalyptic number.

It is an amenable number.

146401 is a deficient number, since it is larger than the sum of its proper divisors (803).

146401 is an equidigital number, since it uses as much as digits as its factorization.

146401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 146401 is about 382.6238361629. The cubic root of 146401 is about 52.7045384462.

It can be divided in two parts, 14640 and 1, that added together give a palindrome (14641).

The spelling of 146401 in words is "one hundred forty-six thousand, four hundred one".