231348547 has 4 divisors (see below), whose sum is σ = 231382656. Its totient is φ = 231314440.

The previous prime is 231348517. The next prime is 231348569. The reversal of 231348547 is 745843132.

It is a happy number.

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 231348547 - 2¹⁵ = 231315779 is a prime.

It is a super-2 number, since 2×231348547² = 107044300398022418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231348517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3043 + ... + 21724.

It is an arithmetic number, because the mean of its divisors is an integer number (57845664).

Almost surely, 2^231348547 is an apocalyptic number.

231348547 is a deficient number, since it is larger than the sum of its proper divisors (34109).

231348547 is an equidigital number, since it uses as much as digits as its factorization.

231348547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34108.

The product of its digits is 80640, while the sum is 37.

The square root of 231348547 is about 15210.1461860168. The cubic root of 231348547 is about 613.8876909107.

The spelling of 231348547 in words is "two hundred thirty-one million, three hundred forty-eight thousand, five hundred forty-seven".