99985141 has 2 divisors, whose sum is σ = 99985142. Its totient is φ = 99985140.

The previous prime is 99985099. The next prime is 99985147. The reversal of 99985141 is 14158999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50339025 + 49646116 = 7095^2 + 7046^2 .

It is a cyclic number.

It is not a de Polignac number, because 99985141 - 2⁹ = 99984629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99985091 and 99985100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99985147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49992570 + 49992571.

It is an arithmetic number, because the mean of its divisors is an integer number (49992571).

Almost surely, 2^99985141 is an apocalyptic number.

It is an amenable number.

99985141 is a deficient number, since it is larger than the sum of its proper divisors (1).

99985141 is an equidigital number, since it uses as much as digits as its factorization.

99985141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 46.

The square root of 99985141 is about 9999.2570223992. The cubic root of 99985141 is about 464.1358924330.

The spelling of 99985141 in words is "ninety-nine million, nine hundred eighty-five thousand, one hundred forty-one".