106811587 has 2 divisors, whose sum is σ = 106811588. Its totient is φ = 106811586.

The previous prime is 106811569. The next prime is 106811591. The reversal of 106811587 is 785118601.

It is a strong prime.

It is an emirp because it is prime and its reverse (785118601) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106811587 is a prime.

It is a super-2 number, since 2×106811587² = 22817430234917138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (106811087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53405793 + 53405794.

It is an arithmetic number, because the mean of its divisors is an integer number (53405794).

Almost surely, 2^106811587 is an apocalyptic number.

106811587 is a deficient number, since it is larger than the sum of its proper divisors (1).

106811587 is an equidigital number, since it uses as much as digits as its factorization.

106811587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 37.

The square root of 106811587 is about 10334.9691339646. The cubic root of 106811587 is about 474.4671209725.

It can be divided in two parts, 10681158 and 7, that multiplied together give a triangular number (74768106 = T₁₂₂₂₈).

The spelling of 106811587 in words is "one hundred six million, eight hundred eleven thousand, five hundred eighty-seven".