111493661 has 8 divisors (see below), whose sum is σ = 115543200. Its totient is φ = 107457840.

The previous prime is 111493631. The next prime is 111493687. The reversal of 111493661 is 166394111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111493661 - 2¹⁰ = 111492637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111493621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14846 + ... + 21056.

It is an arithmetic number, because the mean of its divisors is an integer number (14442900).

Almost surely, 2^111493661 is an apocalyptic number.

It is an amenable number.

111493661 is a deficient number, since it is larger than the sum of its proper divisors (4049539).

111493661 is an equidigital number, since it uses as much as digits as its factorization.

111493661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6859.

The product of its digits is 3888, while the sum is 32.

The square root of 111493661 is about 10559.0558763556. The cubic root of 111493661 is about 481.3009571949.

The spelling of 111493661 in words is "one hundred eleven million, four hundred ninety-three thousand, six hundred sixty-one".