480164981 has 4 divisors (see below), whose sum is σ = 491876364. Its totient is φ = 468453600.

The previous prime is 480164969. The next prime is 480164987. The reversal of 480164981 is 189461084.

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

It can be written as a sum of positive squares in 2 ways, for example, as 280395025 + 199769956 = 16745^2 + 14134^2 .

It is a cyclic number.

It is not a de Polignac number, because 480164981 - 2⁶ = 480164917 is a prime.

It is a super-2 number, since 2×480164981² = 461116817957460722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 11711341 = 480164981 / (4 + 8 + 0 + 1 + 6 + 4 + 9 + 8 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (480164987) 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, 5855630 + ... + 5855711.

It is an arithmetic number, because the mean of its divisors is an integer number (122969091).

Almost surely, 2^480164981 is an apocalyptic number.

480164981 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

480164981 is a deficient number, since it is larger than the sum of its proper divisors (11711383).

480164981 is a wasteful number, since it uses less digits than its factorization.

480164981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11711382.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 480164981 is about 21912.6671357003. The cubic root of 480164981 is about 783.0632233441.

The spelling of 480164981 in words is "four hundred eighty million, one hundred sixty-four thousand, nine hundred eighty-one".