154643 has 2 divisors, whose sum is σ = 154644. Its totient is φ = 154642.

The previous prime is 154621. The next prime is 154667. The reversal of 154643 is 346451.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 154643 - 2⁶ = 154579 is a prime.

It is not a weakly prime, because it can be changed into another prime (154613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77321 + 77322.

It is an arithmetic number, because the mean of its divisors is an integer number (77322).

2¹⁵⁴⁶⁴³ is an apocalyptic number.

154643 is a deficient number, since it is larger than the sum of its proper divisors (1).

154643 is an equidigital number, since it uses as much as digits as its factorization.

154643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 23.

The square root of 154643 is about 393.2467418810. The cubic root of 154643 is about 53.6755811656.

It can be divided in two parts, 154 and 643, that added together give a palindrome (797).

The spelling of 154643 in words is "one hundred fifty-four thousand, six hundred forty-three".