103439985597025 has 81 divisors (see below), whose sum is σ = 164010488872377. Its totient is φ = 64479628012800.

The previous prime is 103439985597019. The next prime is 103439985597041. The reversal of 103439985597025 is 520795589934301.

The square root of 103439985597025 is 10170545.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 25132565271121 + 78307420325904 = 5013239^2 + 8849148^2 .

It is not a de Polignac number, because 103439985597025 - 2³ = 103439985597017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 3915646617 + ... + 3915673033.

Almost surely, 2^{103439985597025} is an apocalyptic number.

103439985597025 is the 10170545-th square number.

103439985597025 is the 5085273-rd centered octagonal number.

It is an amenable number.

103439985597025 is a deficient number, since it is larger than the sum of its proper divisors (60570503275352).

103439985597025 is an frugal number, since it uses more digits than its factorization.

103439985597025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52880 (or 26440 counting only the distinct ones).

The product of its (nonzero) digits is 367416000, while the sum is 70.

The spelling of 103439985597025 in words is "one hundred three trillion, four hundred thirty-nine billion, nine hundred eighty-five million, five hundred ninety-seven thousand, twenty-five".