111732961 has 4 divisors (see below), whose sum is σ = 113626800. Its totient is φ = 109839124.

The previous prime is 111732947. The next prime is 111732983. The reversal of 111732961 is 169237111.

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 111732961 - 2⁷ = 111732833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111732941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 946831 + ... + 946948.

It is an arithmetic number, because the mean of its divisors is an integer number (28406700).

Almost surely, 2^111732961 is an apocalyptic number.

It is an amenable number.

111732961 is a deficient number, since it is larger than the sum of its proper divisors (1893839).

111732961 is an equidigital number, since it uses as much as digits as its factorization.

111732961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1893838.

The product of its digits is 2268, while the sum is 31.

The square root of 111732961 is about 10570.3813081648. The cubic root of 111732961 is about 481.6450515451.

The spelling of 111732961 in words is "one hundred eleven million, seven hundred thirty-two thousand, nine hundred sixty-one".