2147971461 has 16 divisors (see below), whose sum is σ = 2891678400. Its totient is φ = 1418144000.

The previous prime is 2147971459. The next prime is 2147971547. The reversal of 2147971461 is 1641797412.

It is a cyclic number.

It is not a de Polignac number, because 2147971461 - 2¹ = 2147971459 is a prime.

It is a super-2 number, since 2×2147971461² = 9227562794540949042, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2147971411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 659086 + ... + 662336.

It is an arithmetic number, because the mean of its divisors is an integer number (180729900).

Almost surely, 2^2147971461 is an apocalyptic number.

It is an amenable number.

2147971461 is a deficient number, since it is larger than the sum of its proper divisors (743706939).

2147971461 is a wasteful number, since it uses less digits than its factorization.

2147971461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5316.

The product of its digits is 84672, while the sum is 42.

The square root of 2147971461 is about 46346.2130168151. The cubic root of 2147971461 is about 1290.2568366681.

The spelling of 2147971461 in words is "two billion, one hundred forty-seven million, nine hundred seventy-one thousand, four hundred sixty-one".