125680829 has 2 divisors, whose sum is σ = 125680830. Its totient is φ = 125680828.

The previous prime is 125680799. The next prime is 125680831. The reversal of 125680829 is 928086521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92064025 + 33616804 = 9595^2 + 5798^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125680829 is a prime.

Together with 125680831, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125680859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62840414 + 62840415.

It is an arithmetic number, because the mean of its divisors is an integer number (62840415).

Almost surely, 2^125680829 is an apocalyptic number.

It is an amenable number.

125680829 is a deficient number, since it is larger than the sum of its proper divisors (1).

125680829 is an equidigital number, since it uses as much as digits as its factorization.

125680829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 125680829 is about 11210.7461393076. The cubic root of 125680829 is about 500.9061288690.

The spelling of 125680829 in words is "one hundred twenty-five million, six hundred eighty thousand, eight hundred twenty-nine".