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111913 is a prime number
BaseRepresentation
bin11011010100101001
312200111221
4123110221
512040123
62222041
7644164
oct332451
9180457
10111913
117709a
1254921
133bc29
142cadb
152325d
hex1b529

111913 has 2 divisors, whose sum is σ = 111914. Its totient is φ = 111912.

The previous prime is 111893. The next prime is 111919. The reversal of 111913 is 319111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110889 + 1024 = 333^2 + 32^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-111913 is a prime.

It is not a weakly prime, because it can be changed into another prime (111919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55956 + 55957.

It is an arithmetic number, because the mean of its divisors is an integer number (55957).

2111913 is an apocalyptic number.

It is an amenable number.

111913 is a deficient number, since it is larger than the sum of its proper divisors (1).

111913 is an equidigital number, since it uses as much as digits as its factorization.

111913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27, while the sum is 16.

The square root of 111913 is about 334.5340042507. The cubic root of 111913 is about 48.1903609565.

It can be divided in two parts, 111 and 913, that added together give a 10-th power (1024 = 210).

The spelling of 111913 in words is "one hundred eleven thousand, nine hundred thirteen".