2091715429 has 2 divisors, whose sum is σ = 2091715430. Its totient is φ = 2091715428.

The previous prime is 2091715369. The next prime is 2091715471. The reversal of 2091715429 is 9245171902.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2090958529 + 756900 = 45727^2 + 870^2 .

It is a cyclic number.

It is not a de Polignac number, because 2091715429 - 2¹¹ = 2091713381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2091715391 and 2091715400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2091715499) by changing a digit.

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 as a sum of consecutive naturals, namely, 1045857714 + 1045857715.

It is an arithmetic number, because the mean of its divisors is an integer number (1045857715).

Almost surely, 2^2091715429 is an apocalyptic number.

It is an amenable number.

2091715429 is a deficient number, since it is larger than the sum of its proper divisors (1).

2091715429 is an equidigital number, since it uses as much as digits as its factorization.

2091715429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 2091715429 is about 45735.2755430641. The cubic root of 2091715429 is about 1278.8929696400.

The spelling of 2091715429 in words is "two billion, ninety-one million, seven hundred fifteen thousand, four hundred twenty-nine".