2172461131 has 4 divisors (see below), whose sum is σ = 2204885992. Its totient is φ = 2140036272.

The previous prime is 2172461107. The next prime is 2172461141. The reversal of 2172461131 is 1311642712.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2172461131 - 2¹⁹ = 2171936843 is a prime.

It is a super-2 number, since 2×2172461131² = 9439174731411598322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2172461131.

It is not an unprimeable number, because it can be changed into a prime (2172461101) 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 3 ways as a sum of consecutive naturals, for example, 16212330 + ... + 16212463.

It is an arithmetic number, because the mean of its divisors is an integer number (551221498).

Almost surely, 2^2172461131 is an apocalyptic number.

2172461131 is a deficient number, since it is larger than the sum of its proper divisors (32424861).

2172461131 is an equidigital number, since it uses as much as digits as its factorization.

2172461131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32424860.

The product of its digits is 2016, while the sum is 28.

The square root of 2172461131 is about 46609.6677846989. The cubic root of 2172461131 is about 1295.1418539420.

The spelling of 2172461131 in words is "two billion, one hundred seventy-two million, four hundred sixty-one thousand, one hundred thirty-one".