106641919 has 4 divisors (see below), whose sum is σ = 108910944. Its totient is φ = 104372896.

The previous prime is 106641907. The next prime is 106641923. The reversal of 106641919 is 919146601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 919146601 = 509 ⋅1805789.

It is a cyclic number.

It is not a de Polignac number, because 106641919 - 2⁷ = 106641791 is a prime.

It is a super-2 number, since 2×106641919² = 22744997776005122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106641949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1134442 + ... + 1134535.

It is an arithmetic number, because the mean of its divisors is an integer number (27227736).

Almost surely, 2^106641919 is an apocalyptic number.

106641919 is a deficient number, since it is larger than the sum of its proper divisors (2269025).

106641919 is an equidigital number, since it uses as much as digits as its factorization.

106641919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2269024.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 106641919 is about 10326.7574291256. The cubic root of 106641919 is about 474.2157607577.

The spelling of 106641919 in words is "one hundred six million, six hundred forty-one thousand, nine hundred nineteen".