122543725 has 6 divisors (see below), whose sum is σ = 151954250. Its totient is φ = 98034960.

The previous prime is 122543723. The next prime is 122543731. The reversal of 122543725 is 527345221.

It can be written as a sum of positive squares in 3 ways, for example, as 25462116 + 97081609 = 5046^2 + 9853^2 .

It is not a de Polignac number, because 122543725 - 2¹ = 122543723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122543723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2450850 + ... + 2450899.

Almost surely, 2^122543725 is an apocalyptic number.

It is an amenable number.

122543725 is a deficient number, since it is larger than the sum of its proper divisors (29410525).

122543725 is an equidigital number, since it uses as much as digits as its factorization.

122543725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4901759 (or 4901754 counting only the distinct ones).

The product of its digits is 16800, while the sum is 31.

The square root of 122543725 is about 11069.9469285087. The cubic root of 122543725 is about 496.7032776840.

Adding to 122543725 its reverse (527345221), we get a palindrome (649888946).

The spelling of 122543725 in words is "one hundred twenty-two million, five hundred forty-three thousand, seven hundred twenty-five".