2112557497 has 8 divisors (see below), whose sum is σ = 2143311872. Its totient is φ = 2082024000.

The previous prime is 2112557459. The next prime is 2112557539. The reversal of 2112557497 is 7947552112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2112557497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112557197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35904 + ... + 74257.

It is an arithmetic number, because the mean of its divisors is an integer number (267913984).

Almost surely, 2^2112557497 is an apocalyptic number.

2112557497 is the 26537-th hex number.

It is an amenable number.

2112557497 is a deficient number, since it is larger than the sum of its proper divisors (30754375).

2112557497 is a wasteful number, since it uses less digits than its factorization.

2112557497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110439.

The product of its digits is 176400, while the sum is 43.

The square root of 2112557497 is about 45962.5662577711. The cubic root of 2112557497 is about 1283.1266128979.

The spelling of 2112557497 in words is "two billion, one hundred twelve million, five hundred fifty-seven thousand, four hundred ninety-seven".