106278919 has 2 divisors, whose sum is σ = 106278920. Its totient is φ = 106278918.

The previous prime is 106278889. The next prime is 106278947. The reversal of 106278919 is 919872601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 106278919 - 2¹¹ = 106276871 is a prime.

It is a super-2 number, since 2×106278919² = 22590417247617122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106278959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53139459 + 53139460.

It is an arithmetic number, because the mean of its divisors is an integer number (53139460).

Almost surely, 2^106278919 is an apocalyptic number.

106278919 is a deficient number, since it is larger than the sum of its proper divisors (1).

106278919 is an equidigital number, since it uses as much as digits as its factorization.

106278919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 43.

The square root of 106278919 is about 10309.1667461536. The cubic root of 106278919 is about 473.6770857540.

The spelling of 106278919 in words is "one hundred six million, two hundred seventy-eight thousand, nine hundred nineteen".