111016491 has 16 divisors (see below), whose sum is σ = 151524864. Its totient is φ = 72267104.

The previous prime is 111016483. The next prime is 111016501. The reversal of 111016491 is 194610111.

It is a cyclic number.

It is not a de Polignac number, because 111016491 - 2³ = 111016483 is a prime.

It is a super-2 number, since 2×111016491² = 24649322547906162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111016421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94876 + ... + 96038.

It is an arithmetic number, because the mean of its divisors is an integer number (9470304).

Almost surely, 2^111016491 is an apocalyptic number.

111016491 is a deficient number, since it is larger than the sum of its proper divisors (40508373).

111016491 is a wasteful number, since it uses less digits than its factorization.

111016491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890.

The product of its (nonzero) digits is 216, while the sum is 24.

The square root of 111016491 is about 10536.4363520120. The cubic root of 111016491 is about 480.6133521990.

The spelling of 111016491 in words is "one hundred eleven million, sixteen thousand, four hundred ninety-one".