126412013 has 24 divisors (see below), whose sum is σ = 159344640. Its totient is φ = 99398880.

The previous prime is 126412009. The next prime is 126412019. The reversal of 126412013 is 310214621.

It is not a de Polignac number, because 126412013 - 2² = 126412009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126412019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121148 + ... + 122186.

It is an arithmetic number, because the mean of its divisors is an integer number (6639360).

Almost surely, 2^126412013 is an apocalyptic number.

126412013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

126412013 is a deficient number, since it is larger than the sum of its proper divisors (32932627).

126412013 is a wasteful number, since it uses less digits than its factorization.

126412013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1257 (or 1250 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 126412013 is about 11243.3096995502. The cubic root of 126412013 is about 501.8756391574.

Adding to 126412013 its reverse (310214621), we get a palindrome (436626634).

The spelling of 126412013 in words is "one hundred twenty-six million, four hundred twelve thousand, thirteen".