2131671425 has 24 divisors (see below), whose sum is σ = 2864801016. Its totient is φ = 1564093440.

The previous prime is 2131671407. The next prime is 2131671433. The reversal of 2131671425 is 5241761312.

It can be written as a sum of positive squares in 12 ways, for example, as 1296288016 + 835383409 = 36004^2 + 28903^2 .

It is not a de Polignac number, because 2131671425 - 2²⁰ = 2130622849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2131671391 and 2131671400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30137 + ... + 71913.

It is an arithmetic number, because the mean of its divisors is an integer number (119366709).

Almost surely, 2^2131671425 is an apocalyptic number.

2131671425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2131671425 is a deficient number, since it is larger than the sum of its proper divisors (733129591).

2131671425 is a wasteful number, since it uses less digits than its factorization.

2131671425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41957 (or 41952 counting only the distinct ones).

The product of its digits is 10080, while the sum is 32.

The square root of 2131671425 is about 46170.0273445880. The cubic root of 2131671425 is about 1286.9848103712.

The spelling of 2131671425 in words is "two billion, one hundred thirty-one million, six hundred seventy-one thousand, four hundred twenty-five".