105647449 has 2 divisors, whose sum is σ = 105647450. Its totient is φ = 105647448.

The previous prime is 105647419. The next prime is 105647459. The reversal of 105647449 is 944746501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105575625 + 71824 = 10275^2 + 268^2 .

It is an emirp because it is prime and its reverse (944746501) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 105647449 - 2¹⁵ = 105614681 is a prime.

It is a super-2 number, since 2×105647449² = 22322766960415202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105647419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52823724 + 52823725.

It is an arithmetic number, because the mean of its divisors is an integer number (52823725).

Almost surely, 2^105647449 is an apocalyptic number.

It is an amenable number.

105647449 is a deficient number, since it is larger than the sum of its proper divisors (1).

105647449 is an equidigital number, since it uses as much as digits as its factorization.

105647449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 105647449 is about 10278.4944909262. The cubic root of 105647449 is about 472.7370835993.

The spelling of 105647449 in words is "one hundred five million, six hundred forty-seven thousand, four hundred forty-nine".