113194987 has 2 divisors, whose sum is σ = 113194988. Its totient is φ = 113194986.

The previous prime is 113194969. The next prime is 113194999. The reversal of 113194987 is 789491311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 113194987 - 2¹¹ = 113192939 is a prime.

It is not a weakly prime, because it can be changed into another prime (113194957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56597493 + 56597494.

It is an arithmetic number, because the mean of its divisors is an integer number (56597494).

Almost surely, 2^113194987 is an apocalyptic number.

113194987 is a deficient number, since it is larger than the sum of its proper divisors (1).

113194987 is an equidigital number, since it uses as much as digits as its factorization.

113194987 is an evil number, because the sum of its binary digits is even.

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

The square root of 113194987 is about 10639.3132767110. The cubic root of 113194987 is about 483.7367301566.

The spelling of 113194987 in words is "one hundred thirteen million, one hundred ninety-four thousand, nine hundred eighty-seven".