112801815 has 56 divisors (see below), whose sum is σ = 231995808. Its totient is φ = 51554880.

The previous prime is 112801813. The next prime is 112801837. The reversal of 112801815 is 518108211.

It is not a de Polignac number, because 112801815 - 2¹ = 112801813 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112801813) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 23305 + ... + 27725.

Almost surely, 2^112801815 is an apocalyptic number.

112801815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

112801815 is an abundant number, since it is smaller than the sum of its proper divisors (119193993).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

112801815 is an frugal number, since it uses more digits than its factorization.

112801815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4451 (or 4436 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 27.

The square root of 112801815 is about 10620.8198836060. The cubic root of 112801815 is about 483.1760093069.

The spelling of 112801815 in words is "one hundred twelve million, eight hundred one thousand, eight hundred fifteen".