9810125 has 16 divisors (see below), whose sum is σ = 13186992. Its totient is φ = 7243200.

The previous prime is 9810113. The next prime is 9810179. The reversal of 9810125 is 5210189.

9810125 = T₁₄ + T₁₅ + ... + T₃₈₈.

It is a happy number.

9810125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 6620329 + 3189796 = 2573^2 + 1786^2 .

It is not a de Polignac number, because 9810125 - 2¹² = 9806029 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 9810094 and 9810103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1394 + ... + 4643.

It is an arithmetic number, because the mean of its divisors is an integer number (824187).

Almost surely, 2^9810125 is an apocalyptic number.

It is an amenable number.

9810125 is a deficient number, since it is larger than the sum of its proper divisors (3376867).

9810125 is a wasteful number, since it uses less digits than its factorization.

9810125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6065 (or 6055 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 9810125 is about 3132.1119073239. Note that the first 3 decimals coincide. The cubic root of 9810125 is about 214.0711688641.

The spelling of 9810125 in words is "nine million, eight hundred ten thousand, one hundred twenty-five".