111009977 has 8 divisors (see below), whose sum is σ = 123406080. Its totient is φ = 99164880.

The previous prime is 111009971. The next prime is 111009979. The reversal of 111009977 is 779900111.

It is a happy number.

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 111009977 - 2¹⁶ = 110944441 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (111009971) 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, 137327 + ... + 138132.

It is an arithmetic number, because the mean of its divisors is an integer number (15425760).

Almost surely, 2^111009977 is an apocalyptic number.

It is an amenable number.

111009977 is a deficient number, since it is larger than the sum of its proper divisors (12396103).

111009977 is a wasteful number, since it uses less digits than its factorization.

111009977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275503.

The product of its (nonzero) digits is 3969, while the sum is 35.

The square root of 111009977 is about 10536.1272296798. The cubic root of 111009977 is about 480.6039518640.

The spelling of 111009977 in words is "one hundred eleven million, nine thousand, nine hundred seventy-seven".