125819422 has 4 divisors (see below), whose sum is σ = 188729136. Its totient is φ = 62909710.

The previous prime is 125819413. The next prime is 125819461. The reversal of 125819422 is 224918521.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31454854 + ... + 31454857.

It is an arithmetic number, because the mean of its divisors is an integer number (47182284).

Almost surely, 2^125819422 is an apocalyptic number.

125819422 is a deficient number, since it is larger than the sum of its proper divisors (62909714).

125819422 is an equidigital number, since it uses as much as digits as its factorization.

125819422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62909713.

The product of its digits is 11520, while the sum is 34.

The square root of 125819422 is about 11216.9256928982. The cubic root of 125819422 is about 501.0901839371.

Subtracting 125819422 from its reverse (224918521), we obtain a palindrome (99099099).

The spelling of 125819422 in words is "one hundred twenty-five million, eight hundred nineteen thousand, four hundred twenty-two".