106381819 has 2 divisors, whose sum is σ = 106381820. Its totient is φ = 106381818.

The previous prime is 106381813. The next prime is 106381829. The reversal of 106381819 is 918183601.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 106381819 - 2³ = 106381811 is a prime.

It is a super-2 number, since 2×106381819² = 22634182827497522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (106381811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53190909 + 53190910.

It is an arithmetic number, because the mean of its divisors is an integer number (53190910).

Almost surely, 2^106381819 is an apocalyptic number.

106381819 is a deficient number, since it is larger than the sum of its proper divisors (1).

106381819 is an equidigital number, since it uses as much as digits as its factorization.

106381819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 37.

The square root of 106381819 is about 10314.1562427568. The cubic root of 106381819 is about 473.8299089431.

The spelling of 106381819 in words is "one hundred six million, three hundred eighty-one thousand, eight hundred nineteen".