125692841 has 2 divisors, whose sum is σ = 125692842. Its totient is φ = 125692840.

The previous prime is 125692837. The next prime is 125692843. The reversal of 125692841 is 148296521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125328025 + 364816 = 11195^2 + 604^2 .

It is an emirp because it is prime and its reverse (148296521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125692841 - 2² = 125692837 is a prime.

It is a Sophie Germain prime.

Together with 125692843, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 125692795 and 125692804.

It is not a weakly prime, because it can be changed into another prime (125692843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62846420 + 62846421.

It is an arithmetic number, because the mean of its divisors is an integer number (62846421).

Almost surely, 2^125692841 is an apocalyptic number.

It is an amenable number.

125692841 is a deficient number, since it is larger than the sum of its proper divisors (1).

125692841 is an equidigital number, since it uses as much as digits as its factorization.

125692841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 38.

The square root of 125692841 is about 11211.2818624812. The cubic root of 125692841 is about 500.9220864678.

The spelling of 125692841 in words is "one hundred twenty-five million, six hundred ninety-two thousand, eight hundred forty-one".