105214147 has 2 divisors, whose sum is σ = 105214148. Its totient is φ = 105214146.

The previous prime is 105214141. The next prime is 105214177. The reversal of 105214147 is 741412501.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105214147 is a prime.

It is a super-2 number, since 2×105214147² = 22140033457875218, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (105214141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52607073 + 52607074.

It is an arithmetic number, because the mean of its divisors is an integer number (52607074).

Almost surely, 2^105214147 is an apocalyptic number.

105214147 is a deficient number, since it is larger than the sum of its proper divisors (1).

105214147 is an equidigital number, since it uses as much as digits as its factorization.

105214147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 105214147 is about 10257.3947472055. The cubic root of 105214147 is about 472.0899040537.

Adding to 105214147 its reverse (741412501), we get a palindrome (846626648).

The spelling of 105214147 in words is "one hundred five million, two hundred fourteen thousand, one hundred forty-seven".