146623 has 4 divisors (see below), whose sum is σ = 154360. Its totient is φ = 138888.

The previous prime is 146617. The next prime is 146639. The reversal of 146623 is 326641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 326641 = 7 ⋅46663.

It is a cyclic number.

It is not a de Polignac number, because 146623 - 2¹⁷ = 15551 is a prime.

It is a Duffinian number.

146623 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 146594 and 146603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146603) 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, 3840 + ... + 3877.

It is an arithmetic number, because the mean of its divisors is an integer number (38590).

2¹⁴⁶⁶²³ is an apocalyptic number.

146623 is a deficient number, since it is larger than the sum of its proper divisors (7737).

146623 is an equidigital number, since it uses as much as digits as its factorization.

146623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7736.

The product of its digits is 864, while the sum is 22.

The square root of 146623 is about 382.9138284262. The cubic root of 146623 is about 52.7311650822.

The spelling of 146623 in words is "one hundred forty-six thousand, six hundred twenty-three".