125870867 has 2 divisors, whose sum is σ = 125870868. Its totient is φ = 125870866.

The previous prime is 125870837. The next prime is 125870869. The reversal of 125870867 is 768078521.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125870867 is a prime.

Together with 125870869, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (125870869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62935433 + 62935434.

It is an arithmetic number, because the mean of its divisors is an integer number (62935434).

Almost surely, 2^125870867 is an apocalyptic number.

125870867 is a deficient number, since it is larger than the sum of its proper divisors (1).

125870867 is an equidigital number, since it uses as much as digits as its factorization.

125870867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 188160, while the sum is 44.

The square root of 125870867 is about 11219.2186448077. The cubic root of 125870867 is about 501.1584698224.

The spelling of 125870867 in words is "one hundred twenty-five million, eight hundred seventy thousand, eight hundred sixty-seven".