125205434 has 16 divisors (see below), whose sum is σ = 191505600. Its totient is φ = 61376064.

The previous prime is 125205419. The next prime is 125205473. The reversal of 125205434 is 434502521.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 50594 + ... + 53010.

It is an arithmetic number, because the mean of its divisors is an integer number (11969100).

Almost surely, 2^125205434 is an apocalyptic number.

125205434 is a deficient number, since it is larger than the sum of its proper divisors (66300166).

125205434 is a wasteful number, since it uses less digits than its factorization.

125205434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 125205434 is about 11189.5234036129. The cubic root of 125205434 is about 500.2737620813.

Adding to 125205434 its reverse (434502521), we get a palindrome (559707955).

The spelling of 125205434 in words is "one hundred twenty-five million, two hundred five thousand, four hundred thirty-four".