231654481 has 8 divisors (see below), whose sum is σ = 233684640. Its totient is φ = 229629792.

The previous prime is 231654463. The next prime is 231654487. The reversal of 231654481 is 184456132.

231654481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 231654481 - 2²¹ = 229557329 is a prime.

It is a super-2 number, since 2×231654481² = 107327597134758722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231654487) 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, 160941 + ... + 162373.

It is an arithmetic number, because the mean of its divisors is an integer number (29210580).

Almost surely, 2^231654481 is an apocalyptic number.

It is an amenable number.

231654481 is a deficient number, since it is larger than the sum of its proper divisors (2030159).

231654481 is a wasteful number, since it uses less digits than its factorization.

231654481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2735.

The product of its digits is 23040, while the sum is 34.

The square root of 231654481 is about 15220.1997687284. The cubic root of 231654481 is about 614.1581722459.

The spelling of 231654481 in words is "two hundred thirty-one million, six hundred fifty-four thousand, four hundred eighty-one".