125730026 has 8 divisors (see below), whose sum is σ = 193195044. Its totient is φ = 61331680.

The previous prime is 125729953. The next prime is 125730037. The reversal of 125730026 is 620037521.

It can be written as a sum of positive squares in 2 ways, for example, as 94381225 + 31348801 = 9715^2 + 5599^2 .

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 = 125729977 and 125730004.

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, 766565 + ... + 766728.

Almost surely, 2^125730026 is an apocalyptic number.

125730026 is a deficient number, since it is larger than the sum of its proper divisors (67465018).

125730026 is a wasteful number, since it uses less digits than its factorization.

125730026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533336.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 125730026 is about 11212.9401139933. The cubic root of 125730026 is about 500.9714792337.

Adding to 125730026 its reverse (620037521), we get a palindrome (745767547).

The spelling of 125730026 in words is "one hundred twenty-five million, seven hundred thirty thousand, twenty-six".