99211543 has 2 divisors, whose sum is σ = 99211544. Its totient is φ = 99211542.

The previous prime is 99211537. The next prime is 99211561. The reversal of 99211543 is 34511299.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99211543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99211499 and 99211508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99211573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49605771 + 49605772.

It is an arithmetic number, because the mean of its divisors is an integer number (49605772).

Almost surely, 2^99211543 is an apocalyptic number.

99211543 is a deficient number, since it is larger than the sum of its proper divisors (1).

99211543 is an equidigital number, since it uses as much as digits as its factorization.

99211543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 34.

The square root of 99211543 is about 9960.4991340796. The cubic root of 99211543 is about 462.9357653845.

The spelling of 99211543 in words is "ninety-nine million, two hundred eleven thousand, five hundred forty-three".