101997151 has 2 divisors, whose sum is σ = 101997152. Its totient is φ = 101997150.

The previous prime is 101997131. The next prime is 101997163. The reversal of 101997151 is 151799101.

It is a strong prime.

It is an emirp because it is prime and its reverse (151799101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101997151 - 2⁷ = 101997023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101997131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50998575 + 50998576.

It is an arithmetic number, because the mean of its divisors is an integer number (50998576).

Almost surely, 2^101997151 is an apocalyptic number.

101997151 is a deficient number, since it is larger than the sum of its proper divisors (1).

101997151 is an equidigital number, since it uses as much as digits as its factorization.

101997151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2835, while the sum is 34.

The square root of 101997151 is about 10099.3638908597. The cubic root of 101997151 is about 467.2285226432.

The spelling of 101997151 in words is "one hundred one million, nine hundred ninety-seven thousand, one hundred fifty-one".