465143965 has 24 divisors (see below), whose sum is σ = 660734424. Its totient is φ = 312259200.

The previous prime is 465143911. The next prime is 465143969. The reversal of 465143965 is 569341564.

It can be written as a sum of positive squares in 4 ways, for example, as 16297369 + 448846596 = 4037^2 + 21186^2 .

It is not a de Polignac number, because 465143965 - 2⁹ = 465143453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (465143969) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21706 + ... + 37435.

It is an arithmetic number, because the mean of its divisors is an integer number (27530601).

Almost surely, 2^465143965 is an apocalyptic number.

It is an amenable number.

465143965 is a deficient number, since it is larger than the sum of its proper divisors (195590459).

465143965 is a wasteful number, since it uses less digits than its factorization.

465143965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59181 (or 59170 counting only the distinct ones).

The product of its digits is 388800, while the sum is 43.

The square root of 465143965 is about 21567.1965030228. The cubic root of 465143965 is about 774.8110340536.

The spelling of 465143965 in words is "four hundred sixty-five million, one hundred forty-three thousand, nine hundred sixty-five".