126510012 has 30 divisors (see below), whose sum is σ = 330723008. Its totient is φ = 42169896.

The previous prime is 126509989. The next prime is 126510023. The reversal of 126510012 is 210015621.

126510012 is a `hidden beast` number, since 1 + 2 + 651 + 0 + 0 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 194908 + ... + 195555.

Almost surely, 2^126510012 is an apocalyptic number.

126510012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

126510012 is an abundant number, since it is smaller than the sum of its proper divisors (204212996).

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

126510012 is a wasteful number, since it uses less digits than its factorization.

126510012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390479 (or 390468 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 126510012 is about 11247.6669580851. Note that the first 3 decimals coincide. The cubic root of 126510012 is about 502.0052961564.

Adding to 126510012 its reverse (210015621), we get a palindrome (336525633).

The spelling of 126510012 in words is "one hundred twenty-six million, five hundred ten thousand, twelve".