2005415243 has 8 divisors (see below), whose sum is σ = 2172929808. Its totient is φ = 1839793824.

The previous prime is 2005415233. The next prime is 2005415261. The reversal of 2005415243 is 3425145002.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2005415243 - 2¹⁶ = 2005349707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2005415213) 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, 471080 + ... + 475317.

It is an arithmetic number, because the mean of its divisors is an integer number (271616226).

Almost surely, 2^2005415243 is an apocalyptic number.

2005415243 is a deficient number, since it is larger than the sum of its proper divisors (167514565).

2005415243 is a wasteful number, since it uses less digits than its factorization.

2005415243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946573.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2005415243 is about 44781.8628799651. The cubic root of 2005415243 is about 1261.0571549046.

The spelling of 2005415243 in words is "two billion, five million, four hundred fifteen thousand, two hundred forty-three".