99697151 has 2 divisors, whose sum is σ = 99697152. Its totient is φ = 99697150.

The previous prime is 99697141. The next prime is 99697181. The reversal of 99697151 is 15179699.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99697151 - 2¹⁴ = 99680767 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 99697096 and 99697105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99697141) 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, 49848575 + 49848576.

It is an arithmetic number, because the mean of its divisors is an integer number (49848576).

Almost surely, 2^99697151 is an apocalyptic number.

99697151 is a deficient number, since it is larger than the sum of its proper divisors (1).

99697151 is an equidigital number, since it uses as much as digits as its factorization.

99697151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 153090, while the sum is 47.

The square root of 99697151 is about 9984.8460679171. The cubic root of 99697151 is about 463.6898427016.

The spelling of 99697151 in words is "ninety-nine million, six hundred ninety-seven thousand, one hundred fifty-one".