125226979 has 2 divisors, whose sum is σ = 125226980. Its totient is φ = 125226978.

The previous prime is 125226977. The next prime is 125226989. The reversal of 125226979 is 979622521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125226979 - 2¹ = 125226977 is a prime.

Together with 125226977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (125226977) 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, 62613489 + 62613490.

It is an arithmetic number, because the mean of its divisors is an integer number (62613490).

Almost surely, 2^125226979 is an apocalyptic number.

125226979 is a deficient number, since it is larger than the sum of its proper divisors (1).

125226979 is an equidigital number, since it uses as much as digits as its factorization.

125226979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 43.

The square root of 125226979 is about 11190.4860931061. The cubic root of 125226979 is about 500.3024556709.

The spelling of 125226979 in words is "one hundred twenty-five million, two hundred twenty-six thousand, nine hundred seventy-nine".