126421325 has 12 divisors (see below), whose sum is σ = 156904020. Its totient is φ = 101045760.

The previous prime is 126421313. The next prime is 126421331. The reversal of 126421325 is 523124621.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 26481316 + 99940009 = 5146^2 + 9997^2 .

It is a de Polignac number, because none of the positive numbers 2^k-126421325 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 126421294 and 126421303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45887 + ... + 48563.

It is an arithmetic number, because the mean of its divisors is an integer number (13075335).

Almost surely, 2^126421325 is an apocalyptic number.

It is an amenable number.

126421325 is a deficient number, since it is larger than the sum of its proper divisors (30482695).

126421325 is a wasteful number, since it uses less digits than its factorization.

126421325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4576 (or 4571 counting only the distinct ones).

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

The square root of 126421325 is about 11243.7238048611. The cubic root of 126421325 is about 501.8879622247.

Adding to 126421325 its reverse (523124621), we get a palindrome (649545946).

The spelling of 126421325 in words is "one hundred twenty-six million, four hundred twenty-one thousand, three hundred twenty-five".