248312231 has 4 divisors (see below), whose sum is σ = 248505864. Its totient is φ = 248118600.

The previous prime is 248312191. The next prime is 248312249. The reversal of 248312231 is 132213842.

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 248312231 - 2¹⁰ = 248311207 is a prime.

It is a super-2 number, since 2×248312231² = 123317928128394722, 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 248312231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248312731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94880 + ... + 97461.

It is an arithmetic number, because the mean of its divisors is an integer number (62126466).

Almost surely, 2^248312231 is an apocalyptic number.

248312231 is a deficient number, since it is larger than the sum of its proper divisors (193633).

248312231 is a wasteful number, since it uses less digits than its factorization.

248312231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193632.

The product of its digits is 2304, while the sum is 26.

The square root of 248312231 is about 15757.9259739345. The cubic root of 248312231 is about 628.5396856092.

The spelling of 248312231 in words is "two hundred forty-eight million, three hundred twelve thousand, two hundred thirty-one".