146421 has 32 divisors (see below), whose sum is σ = 259200. Its totient is φ = 80640.

The previous prime is 146417. The next prime is 146423. The reversal of 146421 is 124641.

It is not a de Polignac number, because 146421 - 2² = 146417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 146394 and 146403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5035 + ... + 5063.

It is an arithmetic number, because the mean of its divisors is an integer number (8100).

2¹⁴⁶⁴²¹ is an apocalyptic number.

146421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

146421 is a deficient number, since it is larger than the sum of its proper divisors (112779).

146421 is a wasteful number, since it uses less digits than its factorization.

146421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66 (or 60 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 146421 is about 382.6499705998. The cubic root of 146421 is about 52.7069383450.

It can be divided in two parts, 1464 and 21, that added together give a triangular number (1485 = T₅₄).

The spelling of 146421 in words is "one hundred forty-six thousand, four hundred twenty-one".