465945139 has 4 divisors (see below), whose sum is σ = 508303800. Its totient is φ = 423586480.

The previous prime is 465945127. The next prime is 465945149. The reversal of 465945139 is 931549564.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 465945139 - 2¹¹ = 465943091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (465945149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21179314 + ... + 21179335.

It is an arithmetic number, because the mean of its divisors is an integer number (127075950).

Almost surely, 2^465945139 is an apocalyptic number.

465945139 is a deficient number, since it is larger than the sum of its proper divisors (42358661).

465945139 is a wasteful number, since it uses less digits than its factorization.

465945139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42358660.

The product of its digits is 583200, while the sum is 46.

The square root of 465945139 is about 21585.7624141470. The cubic root of 465945139 is about 775.2556293045.

The spelling of 465945139 in words is "four hundred sixty-five million, nine hundred forty-five thousand, one hundred thirty-nine".