113198749 has 2 divisors, whose sum is σ = 113198750. Its totient is φ = 113198748.

The previous prime is 113198693. The next prime is 113198791. The reversal of 113198749 is 947891311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104407524 + 8791225 = 10218^2 + 2965^2 .

It is an emirp because it is prime and its reverse (947891311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113198749 - 2⁷ = 113198621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113198149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56599374 + 56599375.

It is an arithmetic number, because the mean of its divisors is an integer number (56599375).

Almost surely, 2^113198749 is an apocalyptic number.

It is an amenable number.

113198749 is a deficient number, since it is larger than the sum of its proper divisors (1).

113198749 is an equidigital number, since it uses as much as digits as its factorization.

113198749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 43.

The square root of 113198749 is about 10639.4900723672. The cubic root of 113198749 is about 483.7420890435.

The spelling of 113198749 in words is "one hundred thirteen million, one hundred ninety-eight thousand, seven hundred forty-nine".