2131376185 has 16 divisors (see below), whose sum is σ = 2669481360. Its totient is φ = 1632117760.

The previous prime is 2131376171. The next prime is 2131376197. The reversal of 2131376185 is 5816731312.

It can be written as a sum of positive squares in 8 ways, for example, as 97456384 + 2033919801 = 9872^2 + 45099^2 .

It is not a de Polignac number, because 2131376185 - 2¹¹ = 2131374137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87220 + ... + 108949.

It is an arithmetic number, because the mean of its divisors is an integer number (166842585).

Almost surely, 2^2131376185 is an apocalyptic number.

It is an amenable number.

2131376185 is a deficient number, since it is larger than the sum of its proper divisors (538105175).

2131376185 is a wasteful number, since it uses less digits than its factorization.

2131376185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196268.

The product of its digits is 30240, while the sum is 37.

The square root of 2131376185 is about 46166.8299214923. The cubic root of 2131376185 is about 1286.9253911232.

The spelling of 2131376185 in words is "two billion, one hundred thirty-one million, three hundred seventy-six thousand, one hundred eighty-five".