1105213 has 2 divisors, whose sum is σ = 1105214. Its totient is φ = 1105212.

The previous prime is 1105207. The next prime is 1105217. The reversal of 1105213 is 3125011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 974169 + 131044 = 987^2 + 362^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1105213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1105193 and 1105202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1105217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552606 + 552607.

It is an arithmetic number, because the mean of its divisors is an integer number (552607).

2^1105213 is an apocalyptic number.

It is an amenable number.

1105213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1105213 is an equidigital number, since it uses as much as digits as its factorization.

1105213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 1105213 is about 1051.2911109678. The cubic root of 1105213 is about 103.3908235992.

The spelling of 1105213 in words is "one million, one hundred five thousand, two hundred thirteen".