12146731261 has 16 divisors (see below), whose sum is σ = 14013792000. Its totient is φ = 10312743168.

The previous prime is 12146731237. The next prime is 12146731283. The reversal of 12146731261 is 16213764121.

It is not a de Polignac number, because 12146731261 - 2⁷ = 12146731133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12146731211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1537720 + ... + 1545598.

It is an arithmetic number, because the mean of its divisors is an integer number (875862000).

Almost surely, 2^12146731261 is an apocalyptic number.

It is an amenable number.

12146731261 is a deficient number, since it is larger than the sum of its proper divisors (1867060739).

12146731261 is a wasteful number, since it uses less digits than its factorization.

12146731261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9948.

The product of its digits is 12096, while the sum is 34.

The spelling of 12146731261 in words is "twelve billion, one hundred forty-six million, seven hundred thirty-one thousand, two hundred sixty-one".