125499923 has 2 divisors, whose sum is σ = 125499924. Its totient is φ = 125499922.

The previous prime is 125499887. The next prime is 125499931. The reversal of 125499923 is 329994521.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (329994521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125499923 - 2¹² = 125495827 is a prime.

It is not a weakly prime, because it can be changed into another prime (125499973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62749961 + 62749962.

It is an arithmetic number, because the mean of its divisors is an integer number (62749962).

Almost surely, 2^125499923 is an apocalyptic number.

125499923 is a deficient number, since it is larger than the sum of its proper divisors (1).

125499923 is an equidigital number, since it uses as much as digits as its factorization.

125499923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 44.

The square root of 125499923 is about 11202.6748145253. The cubic root of 125499923 is about 500.6656773540.

The spelling of 125499923 in words is "one hundred twenty-five million, four hundred ninety-nine thousand, nine hundred twenty-three".