125005723 has 2 divisors, whose sum is σ = 125005724. Its totient is φ = 125005722.

The previous prime is 125005703. The next prime is 125005753. The reversal of 125005723 is 327500521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125005723 - 2⁵ = 125005691 is a prime.

It is equal to p_7110448 and since 125005723 and 7110448 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (125005703) 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, 62502861 + 62502862.

It is an arithmetic number, because the mean of its divisors is an integer number (62502862).

Almost surely, 2^125005723 is an apocalyptic number.

125005723 is a deficient number, since it is larger than the sum of its proper divisors (1).

125005723 is an equidigital number, since it uses as much as digits as its factorization.

125005723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 125005723 is about 11180.5958249102. The cubic root of 125005723 is about 500.0076305502.

The spelling of 125005723 in words is "one hundred twenty-five million, five thousand, seven hundred twenty-three".