111552671 has 4 divisors (see below), whose sum is σ = 112576200. Its totient is φ = 110529144.

The previous prime is 111552659. The next prime is 111552697. The reversal of 111552671 is 176255111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 176255111 = 97 ⋅1817063.

It is a cyclic number.

It is not a de Polignac number, because 111552671 - 2⁶ = 111552607 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 (111552611) 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, 511601 + ... + 511818.

It is an arithmetic number, because the mean of its divisors is an integer number (28144050).

Almost surely, 2^111552671 is an apocalyptic number.

111552671 is a deficient number, since it is larger than the sum of its proper divisors (1023529).

111552671 is a wasteful number, since it uses less digits than its factorization.

111552671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023528.

The product of its digits is 2100, while the sum is 29.

The square root of 111552671 is about 10561.8497906380. The cubic root of 111552671 is about 481.3858545783.

The spelling of 111552671 in words is "one hundred eleven million, five hundred fifty-two thousand, six hundred seventy-one".