113161387 has 2 divisors, whose sum is σ = 113161388. Its totient is φ = 113161386.

The previous prime is 113161339. The next prime is 113161421. The reversal of 113161387 is 783161311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 113161387 - 2¹¹ = 113159339 is a prime.

It is not a weakly prime, because it can be changed into another prime (113161327) 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, 56580693 + 56580694.

It is an arithmetic number, because the mean of its divisors is an integer number (56580694).

Almost surely, 2^113161387 is an apocalyptic number.

113161387 is a deficient number, since it is larger than the sum of its proper divisors (1).

113161387 is an equidigital number, since it uses as much as digits as its factorization.

113161387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 31.

The square root of 113161387 is about 10637.7341102323. The cubic root of 113161387 is about 483.6888624225.

The spelling of 113161387 in words is "one hundred thirteen million, one hundred sixty-one thousand, three hundred eighty-seven".