125415210 has 16 divisors (see below), whose sum is σ = 300996576. Its totient is φ = 33444048.

The previous prime is 125415193. The next prime is 125415217. The reversal of 125415210 is 12514521.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125415217) 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 7 ways as a sum of consecutive naturals, for example, 2090224 + ... + 2090283.

It is an arithmetic number, because the mean of its divisors is an integer number (18812286).

Almost surely, 2^125415210 is an apocalyptic number.

125415210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125415210 is an abundant number, since it is smaller than the sum of its proper divisors (175581366).

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

125415210 is a wasteful number, since it uses less digits than its factorization.

125415210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4180517.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 125415210 is about 11198.8932488885. The cubic root of 125415210 is about 500.5530014866.

Adding to 125415210 its reverse (12514521), we get a palindrome (137929731).

The spelling of 125415210 in words is "one hundred twenty-five million, four hundred fifteen thousand, two hundred ten".