105214849 has 4 divisors (see below), whose sum is σ = 105594964. Its totient is φ = 104834736.

The previous prime is 105214847. The next prime is 105214861. The reversal of 105214849 is 948412501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 948412501 = 2791 ⋅339811.

It can be written as a sum of positive squares in 2 ways, for example, as 11512449 + 93702400 = 3393^2 + 9680^2 .

It is a cyclic number.

It is not a de Polignac number, because 105214849 - 2¹ = 105214847 is a prime.

It is a super-2 number, since 2×105214849² = 22140328900185602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105214847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189642 + ... + 190195.

It is an arithmetic number, because the mean of its divisors is an integer number (26398741).

Almost surely, 2^105214849 is an apocalyptic number.

It is an amenable number.

105214849 is a deficient number, since it is larger than the sum of its proper divisors (380115).

105214849 is an equidigital number, since it uses as much as digits as its factorization.

105214849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380114.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 105214849 is about 10257.4289663638. The cubic root of 105214849 is about 472.0909539961.

The spelling of 105214849 in words is "one hundred five million, two hundred fourteen thousand, eight hundred forty-nine".