125500730 has 8 divisors (see below), whose sum is σ = 225901332. Its totient is φ = 50200288.

The previous prime is 125500721. The next prime is 125500813. The reversal of 125500730 is 37005521.

It can be written as a sum of positive squares in 2 ways, for example, as 123854641 + 1646089 = 11129^2 + 1283^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 125500696 and 125500705.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6275027 + ... + 6275046.

Almost surely, 2^125500730 is an apocalyptic number.

125500730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125500730 is a deficient number, since it is larger than the sum of its proper divisors (100400602).

125500730 is a wasteful number, since it uses less digits than its factorization.

125500730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12550080.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 125500730 is about 11202.7108326512. The cubic root of 125500730 is about 500.6667504924. Note that the first 3 decimals are identical.

The spelling of 125500730 in words is "one hundred twenty-five million, five hundred thousand, seven hundred thirty".