101722897 has 2 divisors, whose sum is σ = 101722898. Its totient is φ = 101722896.

The previous prime is 101722823. The next prime is 101722909. The reversal of 101722897 is 798227101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64256256 + 37466641 = 8016^2 + 6121^2 .

It is a cyclic number.

It is not a de Polignac number, because 101722897 - 2⁷ = 101722769 is a prime.

It is not a weakly prime, because it can be changed into another prime (101702897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50861448 + 50861449.

It is an arithmetic number, because the mean of its divisors is an integer number (50861449).

Almost surely, 2^101722897 is an apocalyptic number.

It is an amenable number.

101722897 is a deficient number, since it is larger than the sum of its proper divisors (1).

101722897 is an equidigital number, since it uses as much as digits as its factorization.

101722897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 101722897 is about 10085.7769656085. The cubic root of 101722897 is about 466.8093791981.

Adding to 101722897 its reverse (798227101), we get a palindrome (899949998).

The spelling of 101722897 in words is "one hundred one million, seven hundred twenty-two thousand, eight hundred ninety-seven".