106249687 has 2 divisors, whose sum is σ = 106249688. Its totient is φ = 106249686.

The previous prime is 106249669. The next prime is 106249699. The reversal of 106249687 is 786942601.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106249687 is a prime.

It is a super-2 number, since 2×106249687² = 22577991975195938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106249487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53124843 + 53124844.

It is an arithmetic number, because the mean of its divisors is an integer number (53124844).

Almost surely, 2^106249687 is an apocalyptic number.

106249687 is a deficient number, since it is larger than the sum of its proper divisors (1).

106249687 is an equidigital number, since it uses as much as digits as its factorization.

106249687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 106249687 is about 10307.7488813028. The cubic root of 106249687 is about 473.6336535024.

The spelling of 106249687 in words is "one hundred six million, two hundred forty-nine thousand, six hundred eighty-seven".