106149191 has 2 divisors, whose sum is σ = 106149192. Its totient is φ = 106149190.

The previous prime is 106149151. The next prime is 106149203. The reversal of 106149191 is 191941601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 106149191 - 2²² = 101954887 is a prime.

It is a super-2 number, since 2×106149191² = 22535301499908962, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106149101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53074595 + 53074596.

It is an arithmetic number, because the mean of its divisors is an integer number (53074596).

Almost surely, 2^106149191 is an apocalyptic number.

106149191 is a deficient number, since it is larger than the sum of its proper divisors (1).

106149191 is an equidigital number, since it uses as much as digits as its factorization.

106149191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 32.

The square root of 106149191 is about 10302.8729488430. The cubic root of 106149191 is about 473.4842779958.

The spelling of 106149191 in words is "one hundred six million, one hundred forty-nine thousand, one hundred ninety-one".