10125018 has 12 divisors (see below), whose sum is σ = 21937578. Its totient is φ = 3375000.

The previous prime is 10125007. The next prime is 10125019. The reversal of 10125018 is 81052101.

It can be written as a sum of positive squares in only one way, i.e., 5076009 + 5049009 = 2253^2 + 2247^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 562501 = 10125018 / (1 + 0 + 1 + 2 + 5 + 0 + 1 + 8).

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

It is not an unprimeable number, because it can be changed into a prime (10125019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 281233 + ... + 281268.

Almost surely, 2^10125018 is an apocalyptic number.

10125018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

10125018 is an abundant number, since it is smaller than the sum of its proper divisors (11812560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10125018 is a wasteful number, since it uses less digits than its factorization.

10125018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562509 (or 562506 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 10125018 is about 3181.9833437653. The cubic root of 10125018 is about 216.3375637460.

Adding to 10125018 its reverse (81052101), we get a palindrome (91177119).

It can be divided in two parts, 101250 and 18, that multiplied together give a square (1822500 = 1350²).

The spelling of 10125018 in words is "ten million, one hundred twenty-five thousand, eighteen".