125523479 has 2 divisors, whose sum is σ = 125523480. Its totient is φ = 125523478.

The previous prime is 125523449. The next prime is 125523491. The reversal of 125523479 is 974325521.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125523479 is a prime.

It is a super-2 number, since 2×125523479² = 31512287560526882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125523439) 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, 62761739 + 62761740.

It is an arithmetic number, because the mean of its divisors is an integer number (62761740).

Almost surely, 2^125523479 is an apocalyptic number.

125523479 is a deficient number, since it is larger than the sum of its proper divisors (1).

125523479 is an equidigital number, since it uses as much as digits as its factorization.

125523479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 38.

The square root of 125523479 is about 11203.7261212509. The cubic root of 125523479 is about 500.6969999307.

The spelling of 125523479 in words is "one hundred twenty-five million, five hundred twenty-three thousand, four hundred seventy-nine".