125216774 has 16 divisors (see below), whose sum is σ = 195352080. Its totient is φ = 60147360.

The previous prime is 125216759. The next prime is 125216779. The reversal of 125216774 is 477612521.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125216779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6689 + ... + 17180.

It is an arithmetic number, because the mean of its divisors is an integer number (12209505).

Almost surely, 2^125216774 is an apocalyptic number.

125216774 is a deficient number, since it is larger than the sum of its proper divisors (70135306).

125216774 is a wasteful number, since it uses less digits than its factorization.

125216774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23975.

The product of its digits is 23520, while the sum is 35.

The square root of 125216774 is about 11190.0301161346. The cubic root of 125216774 is about 500.2888650818.

The spelling of 125216774 in words is "one hundred twenty-five million, two hundred sixteen thousand, seven hundred seventy-four".