126321325 has 24 divisors (see below), whose sum is σ = 169629768. Its totient is φ = 92762880.

The previous prime is 126321281. The next prime is 126321337. The reversal of 126321325 is 523123621.

It can be written as a sum of positive squares in 12 ways, for example, as 35652841 + 90668484 = 5971^2 + 9522^2 .

It is not a de Polignac number, because 126321325 - 2¹³ = 126313133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126321325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63039 + ... + 65011.

It is an arithmetic number, because the mean of its divisors is an integer number (7067907).

Almost surely, 2^126321325 is an apocalyptic number.

It is an amenable number.

126321325 is a deficient number, since it is larger than the sum of its proper divisors (43308443).

126321325 is a wasteful number, since it uses less digits than its factorization.

126321325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2193 (or 2188 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 126321325 is about 11239.2759998142. The cubic root of 126321325 is about 501.7555952229.

Adding to 126321325 its reverse (523123621), we get a palindrome (649444946).

The spelling of 126321325 in words is "one hundred twenty-six million, three hundred twenty-one thousand, three hundred twenty-five".