105772643 has 2 divisors, whose sum is σ = 105772644. Its totient is φ = 105772642.

The previous prime is 105772621. The next prime is 105772687. The reversal of 105772643 is 346277501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105772643 - 2²² = 101578339 is a prime.

It is a super-2 number, since 2×105772643² = 22375704014410898, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (105772243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52886321 + 52886322.

It is an arithmetic number, because the mean of its divisors is an integer number (52886322).

Almost surely, 2^105772643 is an apocalyptic number.

105772643 is a deficient number, since it is larger than the sum of its proper divisors (1).

105772643 is an equidigital number, since it uses as much as digits as its factorization.

105772643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 105772643 is about 10284.5827820092. The cubic root of 105772643 is about 472.9237436794.

The spelling of 105772643 in words is "one hundred five million, seven hundred seventy-two thousand, six hundred forty-three".