465263189 has 4 divisors (see below), whose sum is σ = 465316320. Its totient is φ = 465210060.

The previous prime is 465263179. The next prime is 465263231. The reversal of 465263189 is 981362564.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 465263189 - 2⁴ = 465263173 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (465263129) 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, 9977 + ... + 32094.

It is an arithmetic number, because the mean of its divisors is an integer number (116329080).

Almost surely, 2^465263189 is an apocalyptic number.

It is an amenable number.

465263189 is a deficient number, since it is larger than the sum of its proper divisors (53131).

465263189 is a wasteful number, since it uses less digits than its factorization.

465263189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53130.

The product of its digits is 311040, while the sum is 44.

The square root of 465263189 is about 21569.9603383965. The cubic root of 465263189 is about 774.8772273087.

The spelling of 465263189 in words is "four hundred sixty-five million, two hundred sixty-three thousand, one hundred eighty-nine".