111049481 has 2 divisors, whose sum is σ = 111049482. Its totient is φ = 111049480.

The previous prime is 111049441. The next prime is 111049487. The reversal of 111049481 is 184940111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107827456 + 3222025 = 10384^2 + 1795^2 .

It is an emirp because it is prime and its reverse (184940111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111049481 - 2⁶ = 111049417 is a prime.

It is a super-2 number, since 2×111049481² = 24663974460738722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111049487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55524740 + 55524741.

It is an arithmetic number, because the mean of its divisors is an integer number (55524741).

Almost surely, 2^111049481 is an apocalyptic number.

It is an amenable number.

111049481 is a deficient number, since it is larger than the sum of its proper divisors (1).

111049481 is an equidigital number, since it uses as much as digits as its factorization.

111049481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 111049481 is about 10538.0017555512. The cubic root of 111049481 is about 480.6609543286.

Adding to 111049481 its reverse (184940111), we get a palindrome (295989592).

The spelling of 111049481 in words is "one hundred eleven million, forty-nine thousand, four hundred eighty-one".