106867561 has 2 divisors, whose sum is σ = 106867562. Its totient is φ = 106867560.

The previous prime is 106867549. The next prime is 106867583. The reversal of 106867561 is 165768601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73874025 + 32993536 = 8595^2 + 5744^2 .

It is an emirp because it is prime and its reverse (165768601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 106867561 - 2¹¹ = 106865513 is a prime.

It is a super-2 number, since 2×106867561² = 22841351188177442, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (106867531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53433780 + 53433781.

It is an arithmetic number, because the mean of its divisors is an integer number (53433781).

Almost surely, 2^106867561 is an apocalyptic number.

It is an amenable number.

106867561 is a deficient number, since it is larger than the sum of its proper divisors (1).

106867561 is an equidigital number, since it uses as much as digits as its factorization.

106867561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 106867561 is about 10337.6767699517. The cubic root of 106867561 is about 474.5499870908.

The spelling of 106867561 in words is "one hundred six million, eight hundred sixty-seven thousand, five hundred sixty-one".