2141705497 has 2 divisors, whose sum is σ = 2141705498. Its totient is φ = 2141705496.

The previous prime is 2141705491. The next prime is 2141705539. The reversal of 2141705497 is 7945071412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1221432601 + 920272896 = 34949^2 + 30336^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2141705497 is a prime.

It is not a weakly prime, because it can be changed into another prime (2141705491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070852748 + 1070852749.

It is an arithmetic number, because the mean of its divisors is an integer number (1070852749).

Almost surely, 2^2141705497 is an apocalyptic number.

It is an amenable number.

2141705497 is a deficient number, since it is larger than the sum of its proper divisors (1).

2141705497 is an equidigital number, since it uses as much as digits as its factorization.

2141705497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 2141705497 is about 46278.5641199033. The cubic root of 2141705497 is about 1289.0009886516. Note that the first 3 decimals are identical.

The spelling of 2141705497 in words is "two billion, one hundred forty-one million, seven hundred five thousand, four hundred ninety-seven".