125631422 has 16 divisors (see below), whose sum is σ = 222795360. Its totient is φ = 51985248.

The previous prime is 125631419. The next prime is 125631463. The reversal of 125631422 is 224136521.

It is a happy number.

It is a super-4 number, since 4×125631422⁴ (a number of 33 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 125631391 and 125631400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154313 + ... + 155124.

It is an arithmetic number, because the mean of its divisors is an integer number (13924710).

Almost surely, 2^125631422 is an apocalyptic number.

125631422 is a deficient number, since it is larger than the sum of its proper divisors (97163938).

125631422 is a wasteful number, since it uses less digits than its factorization.

125631422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309475.

The product of its digits is 2880, while the sum is 26.

The square root of 125631422 is about 11208.5423673197. The cubic root of 125631422 is about 500.8404823871.

Adding to 125631422 its reverse (224136521), we get a palindrome (349767943).

The spelling of 125631422 in words is "one hundred twenty-five million, six hundred thirty-one thousand, four hundred twenty-two".