111949801 has 4 divisors (see below), whose sum is σ = 111992704. Its totient is φ = 111906900.

The previous prime is 111949793. The next prime is 111949837. The reversal of 111949801 is 108949111.

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 111949801 - 2³ = 111949793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111949841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17265 + ... + 22846.

It is an arithmetic number, because the mean of its divisors is an integer number (27998176).

Almost surely, 2^111949801 is an apocalyptic number.

It is an amenable number.

111949801 is a deficient number, since it is larger than the sum of its proper divisors (42903).

111949801 is an equidigital number, since it uses as much as digits as its factorization.

111949801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42902.

The product of its (nonzero) digits is 2592, while the sum is 34.

The square root of 111949801 is about 10580.6332986263. The cubic root of 111949801 is about 481.9564261614.

The spelling of 111949801 in words is "one hundred eleven million, nine hundred forty-nine thousand, eight hundred one".