125040210 has 32 divisors (see below), whose sum is σ = 306484992. Its totient is φ = 32634240.

The previous prime is 125040193. The next prime is 125040211. The reversal of 125040210 is 12040521.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 125040210.

It is not an unprimeable number, because it can be changed into a prime (125040211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42931 + ... + 45750.

It is an arithmetic number, because the mean of its divisors is an integer number (9577656).

Almost surely, 2^125040210 is an apocalyptic number.

125040210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125040210 is an abundant number, since it is smaller than the sum of its proper divisors (181444782).

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

125040210 is a wasteful number, since it uses less digits than its factorization.

125040210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88738.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 125040210 is about 11182.1379887748. The cubic root of 125040210 is about 500.0536075856.

Adding to 125040210 its reverse (12040521), we get a palindrome (137080731).

It can be divided in two parts, 125040 and 210, that added together give a triangular number (125250 = T₅₀₀).

The spelling of 125040210 in words is "one hundred twenty-five million, forty thousand, two hundred ten".