99948131 has 2 divisors, whose sum is σ = 99948132. Its totient is φ = 99948130.

The previous prime is 99948109. The next prime is 99948187. The reversal of 99948131 is 13184999.

It is a weak prime.

It is an emirp because it is prime and its reverse (13184999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99948131 - 2¹⁴ = 99931747 is a prime.

It is a super-2 number, since 2×99948131² = 19979257780786322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99948031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49974065 + 49974066.

It is an arithmetic number, because the mean of its divisors is an integer number (49974066).

Almost surely, 2^99948131 is an apocalyptic number.

99948131 is a deficient number, since it is larger than the sum of its proper divisors (1).

99948131 is an equidigital number, since it uses as much as digits as its factorization.

99948131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 44.

The square root of 99948131 is about 9997.4062136136. The cubic root of 99948131 is about 464.0786179583.

The spelling of 99948131 in words is "ninety-nine million, nine hundred forty-eight thousand, one hundred thirty-one".