112166551 has 4 divisors (see below), whose sum is σ = 128190352. Its totient is φ = 96142752.

The previous prime is 112166539. The next prime is 112166563. The reversal of 112166551 is 155661211.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (112166539) and next prime (112166563).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112166551 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 (112166651) 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, 8011890 + ... + 8011903.

It is an arithmetic number, because the mean of its divisors is an integer number (32047588).

Almost surely, 2^112166551 is an apocalyptic number.

112166551 is a deficient number, since it is larger than the sum of its proper divisors (16023801).

112166551 is an equidigital number, since it uses as much as digits as its factorization.

112166551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16023800.

The product of its digits is 1800, while the sum is 28.

The square root of 112166551 is about 10590.8711162019. The cubic root of 112166551 is about 482.2672699742.

The spelling of 112166551 in words is "one hundred twelve million, one hundred sixty-six thousand, five hundred fifty-one".