111413481 has 4 divisors (see below), whose sum is σ = 148551312. Its totient is φ = 74275652.

The previous prime is 111413479. The next prime is 111413501. The reversal of 111413481 is 184314111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111413481 - 2¹ = 111413479 is a prime.

It is a super-2 number, since 2×111413481² = 24825927497074722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111413381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18568911 + ... + 18568916.

It is an arithmetic number, because the mean of its divisors is an integer number (37137828).

Almost surely, 2^111413481 is an apocalyptic number.

It is an amenable number.

111413481 is a deficient number, since it is larger than the sum of its proper divisors (37137831).

111413481 is an equidigital number, since it uses as much as digits as its factorization.

111413481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37137830.

The product of its digits is 384, while the sum is 24.

The square root of 111413481 is about 10555.2584525439. The cubic root of 111413481 is about 481.1855546244.

Adding to 111413481 its reverse (184314111), we get a palindrome (295727592).

The spelling of 111413481 in words is "one hundred eleven million, four hundred thirteen thousand, four hundred eighty-one".