105451217 has 2 divisors, whose sum is σ = 105451218. Its totient is φ = 105451216.

The previous prime is 105451183. The next prime is 105451223. The reversal of 105451217 is 712154501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75759616 + 29691601 = 8704^2 + 5449^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105451217 is a prime.

It is a super-2 number, since 2×105451217² = 22239918333562178, which contains 22 as substring.

It is a Chen prime.

It is equal to p_6057134 and since 105451217 and 6057134 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (105451267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52725608 + 52725609.

It is an arithmetic number, because the mean of its divisors is an integer number (52725609).

Almost surely, 2^105451217 is an apocalyptic number.

It is an amenable number.

105451217 is a deficient number, since it is larger than the sum of its proper divisors (1).

105451217 is an equidigital number, since it uses as much as digits as its factorization.

105451217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 105451217 is about 10268.9442982227. The cubic root of 105451217 is about 472.4442112869. Note that the first 3 decimals are identical.

The spelling of 105451217 in words is "one hundred five million, four hundred fifty-one thousand, two hundred seventeen".