4081532111 has 4 divisors (see below), whose sum is σ = 4081768152. Its totient is φ = 4081296072.

The previous prime is 4081532107. The next prime is 4081532129. The reversal of 4081532111 is 1112351804.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4081532111 - 2² = 4081532107 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 (4081532131) 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, 89840 + ... + 127413.

It is an arithmetic number, because the mean of its divisors is an integer number (1020442038).

Almost surely, 2^4081532111 is an apocalyptic number.

4081532111 is a deficient number, since it is larger than the sum of its proper divisors (236041).

4081532111 is a wasteful number, since it uses less digits than its factorization.

4081532111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236040.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 4081532111 is about 63886.8696290560. The cubic root of 4081532111 is about 1598.1139378911.

Adding to 4081532111 its reverse (1112351804), we get a palindrome (5193883915).

The spelling of 4081532111 in words is "four billion, eighty-one million, five hundred thirty-two thousand, one hundred eleven".