125313173 has 2 divisors, whose sum is σ = 125313174. Its totient is φ = 125313172.

The previous prime is 125313121. The next prime is 125313193. The reversal of 125313173 is 371313521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106977649 + 18335524 = 10343^2 + 4282^2 .

It is a cyclic number.

It is not a de Polignac number, because 125313173 - 2⁸ = 125312917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125313193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62656586 + 62656587.

It is an arithmetic number, because the mean of its divisors is an integer number (62656587).

Almost surely, 2^125313173 is an apocalyptic number.

It is an amenable number.

125313173 is a deficient number, since it is larger than the sum of its proper divisors (1).

125313173 is an equidigital number, since it uses as much as digits as its factorization.

125313173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1890, while the sum is 26.

The square root of 125313173 is about 11194.3366485022. The cubic root of 125313173 is about 500.4172157652.

Adding to 125313173 its reverse (371313521), we get a palindrome (496626694).

The spelling of 125313173 in words is "one hundred twenty-five million, three hundred thirteen thousand, one hundred seventy-three".