125731770 has 32 divisors (see below), whose sum is σ = 306011520. Its totient is φ = 33055680.

The previous prime is 125731747. The next prime is 125731799. The reversal of 125731770 is 77137521.

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 15 ways as a sum of consecutive naturals, for example, 27385 + ... + 31644.

It is an arithmetic number, because the mean of its divisors is an integer number (9562860).

Almost surely, 2^125731770 is an apocalyptic number.

125731770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125731770 is an abundant number, since it is smaller than the sum of its proper divisors (180279750).

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

125731770 is a wasteful number, since it uses less digits than its factorization.

125731770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59110.

The product of its (nonzero) digits is 10290, while the sum is 33.

The square root of 125731770 is about 11213.0178810167. The cubic root of 125731770 is about 500.9737955466.

The spelling of 125731770 in words is "one hundred twenty-five million, seven hundred thirty-one thousand, seven hundred seventy".