125423 has 2 divisors, whose sum is σ = 125424. Its totient is φ = 125422.

The previous prime is 125407. The next prime is 125429. The reversal of 125423 is 324521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125423 - 2⁴ = 125407 is a prime.

It is equal to p₁₁₇₇₁ and since 125423 and 11771 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62711 + 62712.

It is an arithmetic number, because the mean of its divisors is an integer number (62712).

2¹²⁵⁴²³ is an apocalyptic number.

125423 is a deficient number, since it is larger than the sum of its proper divisors (1).

125423 is an equidigital number, since it uses as much as digits as its factorization.

125423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240, while the sum is 17.

The square root of 125423 is about 354.1510976970. The cubic root of 125423 is about 50.0563365001.

Adding to 125423 its reverse (324521), we get a palindrome (449944).

The spelling of 125423 in words is "one hundred twenty-five thousand, four hundred twenty-three".