99970151 has 2 divisors, whose sum is σ = 99970152. Its totient is φ = 99970150.

The previous prime is 99970147. The next prime is 99970193. The reversal of 99970151 is 15107999.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99970151 - 2² = 99970147 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 99970099 and 99970108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99970111) 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, 49985075 + 49985076.

It is an arithmetic number, because the mean of its divisors is an integer number (49985076).

Almost surely, 2^99970151 is an apocalyptic number.

99970151 is a deficient number, since it is larger than the sum of its proper divisors (1).

99970151 is an equidigital number, since it uses as much as digits as its factorization.

99970151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25515, while the sum is 41.

The square root of 99970151 is about 9998.5074386130. The cubic root of 99970151 is about 464.1126965038.

The spelling of 99970151 in words is "ninety-nine million, nine hundred seventy thousand, one hundred fifty-one".