106491907 has 2 divisors, whose sum is σ = 106491908. Its totient is φ = 106491906.

The previous prime is 106491899. The next prime is 106491923. The reversal of 106491907 is 709194601.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 106491907 - 2³ = 106491899 is a prime.

It is a super-2 number, since 2×106491907² = 22681052512993298, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (106491937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53245953 + 53245954.

It is an arithmetic number, because the mean of its divisors is an integer number (53245954).

Almost surely, 2^106491907 is an apocalyptic number.

106491907 is a deficient number, since it is larger than the sum of its proper divisors (1).

106491907 is an equidigital number, since it uses as much as digits as its factorization.

106491907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 106491907 is about 10319.4916056945. The cubic root of 106491907 is about 473.9932984032.

The spelling of 106491907 in words is "one hundred six million, four hundred ninety-one thousand, nine hundred seven".