125629687241 has 4 divisors (see below), whose sum is σ = 125726252484. Its totient is φ = 125533122000.

The previous prime is 125629687237. The next prime is 125629687259. The reversal of 125629687241 is 142786926521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15209055625 + 110420631616 = 123325^2 + 332296^2 .

It is a cyclic number.

It is not a de Polignac number, because 125629687241 - 2² = 125629687237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125629687201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48280670 + ... + 48283271.

It is an arithmetic number, because the mean of its divisors is an integer number (31431563121).

Almost surely, 2^125629687241 is an apocalyptic number.

It is an amenable number.

125629687241 is a deficient number, since it is larger than the sum of its proper divisors (96565243).

125629687241 is an equidigital number, since it uses as much as digits as its factorization.

125629687241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96565242.

The product of its digits is 2903040, while the sum is 53.

The spelling of 125629687241 in words is "one hundred twenty-five billion, six hundred twenty-nine million, six hundred eighty-seven thousand, two hundred forty-one".