125423633 has 4 divisors (see below), whose sum is σ = 128482788. Its totient is φ = 122364480.

The previous prime is 125423611. The next prime is 125423653. The reversal of 125423633 is 336324521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 336324521 = 13 ⋅25871117.

It can be written as a sum of positive squares in 2 ways, for example, as 44729344 + 80694289 = 6688^2 + 8983^2 .

It is a cyclic number.

It is not a de Polignac number, because 125423633 - 2¹⁸ = 125161489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125423596 and 125423605.

It is not an unprimeable number, because it can be changed into a prime (125423653) 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 in 3 ways as a sum of consecutive naturals, for example, 1529516 + ... + 1529597.

It is an arithmetic number, because the mean of its divisors is an integer number (32120697).

Almost surely, 2^125423633 is an apocalyptic number.

It is an amenable number.

125423633 is a deficient number, since it is larger than the sum of its proper divisors (3059155).

125423633 is an equidigital number, since it uses as much as digits as its factorization.

125423633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3059154.

The product of its digits is 12960, while the sum is 29.

The square root of 125423633 is about 11199.2693065217. The cubic root of 125423633 is about 500.5642071012.

The spelling of 125423633 in words is "one hundred twenty-five million, four hundred twenty-three thousand, six hundred thirty-three".