108787531 has 2 divisors, whose sum is σ = 108787532. Its totient is φ = 108787530.

The previous prime is 108787507. The next prime is 108787543. The reversal of 108787531 is 135787801.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 108787531 - 2⁵ = 108787499 is a prime.

It is a super-2 number, since 2×108787531² = 23669453802151922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (108787501) 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, 54393765 + 54393766.

It is an arithmetic number, because the mean of its divisors is an integer number (54393766).

Almost surely, 2^108787531 is an apocalyptic number.

108787531 is a deficient number, since it is larger than the sum of its proper divisors (1).

108787531 is an equidigital number, since it uses as much as digits as its factorization.

108787531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 40.

The square root of 108787531 is about 10430.1261257954. The cubic root of 108787531 is about 477.3750388905.

The spelling of 108787531 in words is "one hundred eight million, seven hundred eighty-seven thousand, five hundred thirty-one".