2115942545 has 8 divisors (see below), whose sum is σ = 2541105600. Its totient is φ = 1691437680.

The previous prime is 2115942481. The next prime is 2115942551. The reversal of 2115942545 is 5452495112.

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

It is not a de Polignac number, because 2115942545 - 2⁶ = 2115942481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2115942499 and 2115942508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157445 + ... + 170354.

It is an arithmetic number, because the mean of its divisors is an integer number (317638200).

Almost surely, 2^2115942545 is an apocalyptic number.

It is an amenable number.

2115942545 is a deficient number, since it is larger than the sum of its proper divisors (425163055).

2115942545 is a wasteful number, since it uses less digits than its factorization.

2115942545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329095.

The product of its digits is 72000, while the sum is 38.

The square root of 2115942545 is about 45999.3754848911. The cubic root of 2115942545 is about 1283.8115847615.

The spelling of 2115942545 in words is "two billion, one hundred fifteen million, nine hundred forty-two thousand, five hundred forty-five".