88218541 has 2 divisors, whose sum is σ = 88218542. Its totient is φ = 88218540.

The previous prime is 88218527. The next prime is 88218569. The reversal of 88218541 is 14581288.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55442916 + 32775625 = 7446^2 + 5725^2 .

It is a cyclic number.

It is not a de Polignac number, because 88218541 - 2¹³ = 88210349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 88218541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88218521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44109270 + 44109271.

It is an arithmetic number, because the mean of its divisors is an integer number (44109271).

Almost surely, 2^88218541 is an apocalyptic number.

It is an amenable number.

88218541 is a deficient number, since it is larger than the sum of its proper divisors (1).

88218541 is an equidigital number, since it uses as much as digits as its factorization.

88218541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20480, while the sum is 37.

The square root of 88218541 is about 9392.4725711604. The cubic root of 88218541 is about 445.1639189074.

The spelling of 88218541 in words is "eighty-eight million, two hundred eighteen thousand, five hundred forty-one".