2147940065 has 8 divisors (see below), whose sum is σ = 2577827328. Its totient is φ = 1718152560.

The previous prime is 2147940043. The next prime is 2147940107. The reversal of 2147940065 is 5600497412.

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

It is not a de Polignac number, because 2147940065 - 2⁶ = 2147940001 is a prime.

It is a super-2 number, since 2×2147940065² = 9227293045664408450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35954 + ... + 74756.

It is an arithmetic number, because the mean of its divisors is an integer number (322228416).

Almost surely, 2^2147940065 is an apocalyptic number.

It is an amenable number.

2147940065 is a deficient number, since it is larger than the sum of its proper divisors (429887263).

2147940065 is a wasteful number, since it uses less digits than its factorization.

2147940065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49879.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 2147940065 is about 46345.8743039766. The cubic root of 2147940065 is about 1290.2505502561.

The spelling of 2147940065 in words is "two billion, one hundred forty-seven million, nine hundred forty thousand, sixty-five".