112840155 has 64 divisors (see below), whose sum is σ = 211046400. Its totient is φ = 57127680.

The previous prime is 112840109. The next prime is 112840171. The reversal of 112840155 is 551048211.

It is not a de Polignac number, because 112840155 - 2⁷ = 112840027 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 246687 + ... + 247143.

It is an arithmetic number, because the mean of its divisors is an integer number (3297600).

Almost surely, 2^112840155 is an apocalyptic number.

112840155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

112840155 is a deficient number, since it is larger than the sum of its proper divisors (98206245).

112840155 is a wasteful number, since it uses less digits than its factorization.

112840155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561 (or 555 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 112840155 is about 10622.6246756628. The cubic root of 112840155 is about 483.2307450390.

Adding to 112840155 its reverse (551048211), we get a palindrome (663888366).

The spelling of 112840155 in words is "one hundred twelve million, eight hundred forty thousand, one hundred fifty-five".