481471381 has 4 divisors (see below), whose sum is σ = 506812000. Its totient is φ = 456130764.

The previous prime is 481471379. The next prime is 481471391. The reversal of 481471381 is 183174184.

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.

It is a cyclic number.

It is not a de Polignac number, because 481471381 - 2¹ = 481471379 is a prime.

It is a super-2 number, since 2×481471381² = 463629381444094322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 481471381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481471391) 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, 12670281 + ... + 12670318.

It is an arithmetic number, because the mean of its divisors is an integer number (126703000).

Almost surely, 2^481471381 is an apocalyptic number.

It is an amenable number.

481471381 is a deficient number, since it is larger than the sum of its proper divisors (25340619).

481471381 is a wasteful number, since it uses less digits than its factorization.

481471381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25340618.

The product of its digits is 21504, while the sum is 37.

The square root of 481471381 is about 21942.4561296132. The cubic root of 481471381 is about 783.7727485221.

The spelling of 481471381 in words is "four hundred eighty-one million, four hundred seventy-one thousand, three hundred eighty-one".