125539197 has 16 divisors (see below), whose sum is σ = 194542080. Its totient is φ = 70520112.

The previous prime is 125539157. The next prime is 125539201. The reversal of 125539197 is 791935521.

It is not a de Polignac number, because 125539197 - 2¹¹ = 125537149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125539157) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 49423 + ... + 51900.

It is an arithmetic number, because the mean of its divisors is an integer number (12158880).

Almost surely, 2^125539197 is an apocalyptic number.

It is an amenable number.

125539197 is a deficient number, since it is larger than the sum of its proper divisors (69002883).

125539197 is a wasteful number, since it uses less digits than its factorization.

125539197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101392.

The product of its digits is 85050, while the sum is 42.

The square root of 125539197 is about 11204.4275623523. The cubic root of 125539197 is about 500.7178980847.

The spelling of 125539197 in words is "one hundred twenty-five million, five hundred thirty-nine thousand, one hundred ninety-seven".