125598817 has 12 divisors (see below), whose sum is σ = 130289404. Its totient is φ = 121043520.

The previous prime is 125598793. The next prime is 125598841. The reversal of 125598817 is 718895521.

It is an interprime number because it is at equal distance from previous prime (125598793) and next prime (125598841).

It can be written as a sum of positive squares in 6 ways, for example, as 7420176 + 118178641 = 2724^2 + 10871^2 .

It is not a de Polignac number, because 125598817 - 2¹¹ = 125596769 is a prime.

It is a Duffinian number.

Its product of digits (201600) is a multiple of the sum of its prime factors (900).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125598857) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170983 + ... + 171715.

Almost surely, 2^125598817 is an apocalyptic number.

It is an amenable number.

125598817 is a deficient number, since it is larger than the sum of its proper divisors (4690587).

125598817 is an frugal number, since it uses more digits than its factorization.

125598817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900 (or 847 counting only the distinct ones).

The product of its digits is 201600, while the sum is 46.

The square root of 125598817 is about 11207.0878019225. The cubic root of 125598817 is about 500.7971510915.

The spelling of 125598817 in words is "one hundred twenty-five million, five hundred ninety-eight thousand, eight hundred seventeen".