125420918 has 16 divisors (see below), whose sum is σ = 218217984. Its totient is φ = 52949160.

The previous prime is 125420837. The next prime is 125420921. The reversal of 125420918 is 819024521.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 65918 + ... + 67793.

It is an arithmetic number, because the mean of its divisors is an integer number (13638624).

Almost surely, 2^125420918 is an apocalyptic number.

125420918 is a deficient number, since it is larger than the sum of its proper divisors (92797066).

125420918 is a wasteful number, since it uses less digits than its factorization.

125420918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133787.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 125420918 is about 11199.1480926006. The cubic root of 125420918 is about 500.5605952311.

The spelling of 125420918 in words is "one hundred twenty-five million, four hundred twenty thousand, nine hundred eighteen".