109018531 has 2 divisors, whose sum is σ = 109018532. Its totient is φ = 109018530.

The previous prime is 109018517. The next prime is 109018543. The reversal of 109018531 is 135810901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 109018531 - 2²³ = 100629923 is a prime.

It is a super-2 number, since 2×109018531² = 23770080202795922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 109018531.

It is not a weakly prime, because it can be changed into another prime (109018571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54509265 + 54509266.

It is an arithmetic number, because the mean of its divisors is an integer number (54509266).

Almost surely, 2^109018531 is an apocalyptic number.

109018531 is a deficient number, since it is larger than the sum of its proper divisors (1).

109018531 is an equidigital number, since it uses as much as digits as its factorization.

109018531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 109018531 is about 10441.1939451386. The cubic root of 109018531 is about 477.7126868821.

The spelling of 109018531 in words is "one hundred nine million, eighteen thousand, five hundred thirty-one".