125442012 has 24 divisors (see below), whose sum is σ = 292891536. Its totient is φ = 41786368.

The previous prime is 125441993. The next prime is 125442017. The reversal of 125442012 is 210244521.

It is a self number, because there is not a number n which added to its sum of digits gives 125442012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125442017) 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 7 ways as a sum of consecutive naturals, for example, 24508 + ... + 29180.

It is an arithmetic number, because the mean of its divisors is an integer number (12203814).

Almost surely, 2^125442012 is an apocalyptic number.

125442012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

125442012 is an abundant number, since it is smaller than the sum of its proper divisors (167449524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125442012 is a wasteful number, since it uses less digits than its factorization.

125442012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6917 (or 6915 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 125442012 is about 11200.0898210684. The cubic root of 125442012 is about 500.5886560295.

Adding to 125442012 its reverse (210244521), we get a palindrome (335686533).

The spelling of 125442012 in words is "one hundred twenty-five million, four hundred forty-two thousand, twelve".