2151710609 has 2 divisors, whose sum is σ = 2151710610. Its totient is φ = 2151710608.

The previous prime is 2151710563. The next prime is 2151710623. The reversal of 2151710609 is 9060171512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1774768384 + 376942225 = 42128^2 + 19415^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2151710609 is a prime.

It is not a weakly prime, because it can be changed into another prime (2151710699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075855304 + 1075855305.

It is an arithmetic number, because the mean of its divisors is an integer number (1075855305).

Almost surely, 2^2151710609 is an apocalyptic number.

It is an amenable number.

2151710609 is a deficient number, since it is larger than the sum of its proper divisors (1).

2151710609 is an equidigital number, since it uses as much as digits as its factorization.

2151710609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 32.

The square root of 2151710609 is about 46386.5347811194. The cubic root of 2151710609 is about 1291.0050875362.

The spelling of 2151710609 in words is "two billion, one hundred fifty-one million, seven hundred ten thousand, six hundred nine".