126420032 has 14 divisors (see below), whose sum is σ = 250864878. Its totient is φ = 63209984.

The previous prime is 126420031. The next prime is 126420071. The reversal of 126420032 is 230024621.

It can be written as a sum of positive squares in only one way, i.e., 82011136 + 44408896 = 9056^2 + 6664^2 .

It is a junction number, because it is equal to n+sod(n) for n = 126419986 and 126420013.

It is not an unprimeable number, because it can be changed into a prime (126420031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 987593 + ... + 987720.

Almost surely, 2^126420032 is an apocalyptic number.

It is an amenable number.

126420032 is a deficient number, since it is larger than the sum of its proper divisors (124444846).

126420032 is an equidigital number, since it uses as much as digits as its factorization.

126420032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1975325 (or 1975315 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 126420032 is about 11243.6663059698. Note that the first 3 decimals coincide. The cubic root of 126420032 is about 501.8862511649.

Adding to 126420032 its reverse (230024621), we get a palindrome (356444653).

The spelling of 126420032 in words is "one hundred twenty-six million, four hundred twenty thousand, thirty-two".