102213049 has 2 divisors, whose sum is σ = 102213050. Its totient is φ = 102213048.

The previous prime is 102213037. The next prime is 102213073. The reversal of 102213049 is 940312201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83997225 + 18215824 = 9165^2 + 4268^2 .

It is an emirp because it is prime and its reverse (940312201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102213049 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102213019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51106524 + 51106525.

It is an arithmetic number, because the mean of its divisors is an integer number (51106525).

Almost surely, 2^102213049 is an apocalyptic number.

It is an amenable number.

102213049 is a deficient number, since it is larger than the sum of its proper divisors (1).

102213049 is an equidigital number, since it uses as much as digits as its factorization.

102213049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 102213049 is about 10110.0469336200. The cubic root of 102213049 is about 467.5579521513.

The spelling of 102213049 in words is "one hundred two million, two hundred thirteen thousand, forty-nine".