125546978 has 8 divisors (see below), whose sum is σ = 188471772. Its totient is φ = 62723056.

The previous prime is 125546977. The next prime is 125547047. The reversal of 125546978 is 879645521.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 123365449 + 2181529 = 11107^2 + 1477^2 .

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

It is not an unprimeable number, because it can be changed into a prime (125546977) by changing a digit.

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, 22025 + ... + 27132.

Almost surely, 2^125546978 is an apocalyptic number.

125546978 is a deficient number, since it is larger than the sum of its proper divisors (62924794).

125546978 is a wasteful number, since it uses less digits than its factorization.

125546978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50436.

The product of its digits is 604800, while the sum is 47.

The square root of 125546978 is about 11204.7747857777. The cubic root of 125546978 is about 500.7282428099.

The spelling of 125546978 in words is "one hundred twenty-five million, five hundred forty-six thousand, nine hundred seventy-eight".