126522012 has 24 divisors (see below), whose sum is σ = 305398800. Its totient is φ = 40719616.

The previous prime is 126522001. The next prime is 126522013. The reversal of 126522012 is 210225621.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 126522012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126522013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181437 + ... + 182132.

It is an arithmetic number, because the mean of its divisors is an integer number (12724950).

Almost surely, 2^126522012 is an apocalyptic number.

126522012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

126522012 is an abundant number, since it is smaller than the sum of its proper divisors (178876788).

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

126522012 is a wasteful number, since it uses less digits than its factorization.

126522012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363605 (or 363603 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 126522012 is about 11248.2003893956. The cubic root of 126522012 is about 502.0211680835.

Adding to 126522012 its reverse (210225621), we get a palindrome (336747633).

The spelling of 126522012 in words is "one hundred twenty-six million, five hundred twenty-two thousand, twelve".