112209913 has 2 divisors, whose sum is σ = 112209914. Its totient is φ = 112209912.

The previous prime is 112209899. The next prime is 112209943. The reversal of 112209913 is 319902211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95004009 + 17205904 = 9747^2 + 4148^2 .

It is an emirp because it is prime and its reverse (319902211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112209913 is a prime.

It is not a weakly prime, because it can be changed into another prime (112209943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56104956 + 56104957.

It is an arithmetic number, because the mean of its divisors is an integer number (56104957).

Almost surely, 2^112209913 is an apocalyptic number.

It is an amenable number.

112209913 is a deficient number, since it is larger than the sum of its proper divisors (1).

112209913 is an equidigital number, since it uses as much as digits as its factorization.

112209913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 112209913 is about 10592.9180587787. The cubic root of 112209913 is about 482.3294078664.

The spelling of 112209913 in words is "one hundred twelve million, two hundred nine thousand, nine hundred thirteen".