1200542125 has 48 divisors (see below), whose sum is σ = 1609171200. Its totient is φ = 894009600.

The previous prime is 1200542117. The next prime is 1200542141. The reversal of 1200542125 is 5212450021.

It is not a de Polignac number, because 1200542125 - 2³ = 1200542117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1200542096 and 1200542105.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 6032776 + ... + 6032974.

It is an arithmetic number, because the mean of its divisors is an integer number (33524400).

Almost surely, 2^1200542125 is an apocalyptic number.

It is an amenable number.

1200542125 is a deficient number, since it is larger than the sum of its proper divisors (408629075).

1200542125 is a wasteful number, since it uses less digits than its factorization.

1200542125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415 (or 388 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 1200542125 is about 34648.8401681788. The cubic root of 1200542125 is about 1062.8185711394.

Adding to 1200542125 its reverse (5212450021), we get a palindrome (6412992146).

The spelling of 1200542125 in words is "one billion, two hundred million, five hundred forty-two thousand, one hundred twenty-five".