465144981 has 8 divisors (see below), whose sum is σ = 708792384. Its totient is φ = 265797120.

The previous prime is 465144961. The next prime is 465144983. The reversal of 465144981 is 189441564.

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

It is not a de Polignac number, because 465144981 - 2⁹ = 465144469 is a prime.

It is a super-2 number, since 2×465144981² = 432719706698980722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (465144983) 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, 11074860 + ... + 11074901.

It is an arithmetic number, because the mean of its divisors is an integer number (88599048).

Almost surely, 2^465144981 is an apocalyptic number.

It is an amenable number.

465144981 is a deficient number, since it is larger than the sum of its proper divisors (243647403).

465144981 is a wasteful number, since it uses less digits than its factorization.

465144981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22149771.

The product of its digits is 138240, while the sum is 42.

The square root of 465144981 is about 21567.2200572999. The cubic root of 465144981 is about 774.8115981854.

The spelling of 465144981 in words is "four hundred sixty-five million, one hundred forty-four thousand, nine hundred eighty-one".