125121610 has 16 divisors (see below), whose sum is σ = 235011456. Its totient is φ = 47872528.

The previous prime is 125121599. The next prime is 125121643. The reversal of 125121610 is 16121521.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 271774 + ... + 272233.

It is an arithmetic number, because the mean of its divisors is an integer number (14688216).

Almost surely, 2^125121610 is an apocalyptic number.

125121610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125121610 is a deficient number, since it is larger than the sum of its proper divisors (109889846).

125121610 is a wasteful number, since it uses less digits than its factorization.

125121610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544037.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 125121610 is about 11185.7771299092. Note that the first 3 decimals coincide. The cubic root of 125121610 is about 500.1620941120.

The spelling of 125121610 in words is "one hundred twenty-five million, one hundred twenty-one thousand, six hundred ten".