2148671131 has 4 divisors (see below), whose sum is σ = 2148811000. Its totient is φ = 2148531264.

The previous prime is 2148671087. The next prime is 2148671149. The reversal of 2148671131 is 1311768412.

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 2148671131 - 2⁹ = 2148670619 is a prime.

It is a super-2 number, since 2×2148671131² = 9233575258385638322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2148672131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43581 + ... + 78718.

It is an arithmetic number, because the mean of its divisors is an integer number (537202750).

Almost surely, 2^2148671131 is an apocalyptic number.

2148671131 is a deficient number, since it is larger than the sum of its proper divisors (139869).

2148671131 is a wasteful number, since it uses less digits than its factorization.

2148671131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139868.

The product of its digits is 8064, while the sum is 34.

The square root of 2148671131 is about 46353.7606996455. The cubic root of 2148671131 is about 1290.3969154999.

The spelling of 2148671131 in words is "two billion, one hundred forty-eight million, six hundred seventy-one thousand, one hundred thirty-one".