481309231 has 4 divisors (see below), whose sum is σ = 518333032. Its totient is φ = 444285432.

The previous prime is 481309207. The next prime is 481309243. The reversal of 481309231 is 132903184.

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

It is a cyclic number.

It is not a de Polignac number, because 481309231 - 2¹⁵ = 481276463 is a prime.

It is a super-2 number, since 2×481309231² = 463317151691622722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 481309193 and 481309202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (481009231) 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, 18511881 + ... + 18511906.

It is an arithmetic number, because the mean of its divisors is an integer number (129583258).

Almost surely, 2^481309231 is an apocalyptic number.

481309231 is a deficient number, since it is larger than the sum of its proper divisors (37023801).

481309231 is a wasteful number, since it uses less digits than its factorization.

481309231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37023800.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 481309231 is about 21938.7609267251. The cubic root of 481309231 is about 783.6847522771.

The spelling of 481309231 in words is "four hundred eighty-one million, three hundred nine thousand, two hundred thirty-one".