2112451539 has 8 divisors (see below), whose sum is σ = 3072656832. Its totient is φ = 1280273640.

The previous prime is 2112451513. The next prime is 2112451541. The reversal of 2112451539 is 9351542112.

It is a happy number.

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

It is not a de Polignac number, because 2112451539 - 2²⁴ = 2095674323 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 64013683 = 2112451539 / (2 + 1 + 1 + 2 + 4 + 5 + 1 + 5 + 3 + 9).

It is not an unprimeable number, because it can be changed into a prime (2112451339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32006809 + ... + 32006874.

It is an arithmetic number, because the mean of its divisors is an integer number (384082104).

Almost surely, 2^2112451539 is an apocalyptic number.

2112451539 is a deficient number, since it is larger than the sum of its proper divisors (960205293).

2112451539 is a wasteful number, since it uses less digits than its factorization.

2112451539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64013697.

The product of its digits is 10800, while the sum is 33.

The square root of 2112451539 is about 45961.4135879218. The cubic root of 2112451539 is about 1283.1051602584.

The spelling of 2112451539 in words is "two billion, one hundred twelve million, four hundred fifty-one thousand, five hundred thirty-nine".