125716429 has 2 divisors, whose sum is σ = 125716430. Its totient is φ = 125716428.

The previous prime is 125716427. The next prime is 125716441. The reversal of 125716429 is 924617521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108118404 + 17598025 = 10398^2 + 4195^2 .

It is a cyclic number.

It is not a de Polignac number, because 125716429 - 2¹ = 125716427 is a prime.

Together with 125716427, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125716427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62858214 + 62858215.

It is an arithmetic number, because the mean of its divisors is an integer number (62858215).

Almost surely, 2^125716429 is an apocalyptic number.

It is an amenable number.

125716429 is a deficient number, since it is larger than the sum of its proper divisors (1).

125716429 is an equidigital number, since it uses as much as digits as its factorization.

125716429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 37.

The square root of 125716429 is about 11212.3337891806. Note that the first 3 decimals coincide. The cubic root of 125716429 is about 500.9534194936.

The spelling of 125716429 in words is "one hundred twenty-five million, seven hundred sixteen thousand, four hundred twenty-nine".