125278946530 has 8 divisors (see below), whose sum is σ = 225502103772. Its totient is φ = 50111578608.

The previous prime is 125278946521. The next prime is 125278946561. The reversal of 125278946530 is 35649872521.

It can be written as a sum of positive squares in 2 ways, for example, as 114569387361 + 10709559169 = 338481^2 + 103487^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 6263947317 + ... + 6263947336.

It is a 1-persistent number, because it is pandigital, but 2⋅125278946530 = 250557893060 is not.

Almost surely, 2^125278946530 is an apocalyptic number.

125278946530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125278946530 is a deficient number, since it is larger than the sum of its proper divisors (100223157242).

125278946530 is a wasteful number, since it uses less digits than its factorization.

125278946530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12527894660.

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 125278946530 in words is "one hundred twenty-five billion, two hundred seventy-eight million, nine hundred forty-six thousand, five hundred thirty".