2131404929 has 2 divisors, whose sum is σ = 2131404930. Its totient is φ = 2131404928.

The previous prime is 2131404889. The next prime is 2131404941. The reversal of 2131404929 is 9294041312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1457483329 + 673921600 = 38177^2 + 25960^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131404929 - 2⁸ = 2131404673 is a prime.

It is not a weakly prime, because it can be changed into another prime (2131404949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065702464 + 1065702465.

It is an arithmetic number, because the mean of its divisors is an integer number (1065702465).

Almost surely, 2^2131404929 is an apocalyptic number.

It is an amenable number.

2131404929 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131404929 is an equidigital number, since it uses as much as digits as its factorization.

2131404929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 2131404929 is about 46167.1412262011. The cubic root of 2131404929 is about 1286.9311763083.

The spelling of 2131404929 in words is "two billion, one hundred thirty-one million, four hundred four thousand, nine hundred twenty-nine".