248486143 has 4 divisors (see below), whose sum is σ = 249060448. Its totient is φ = 247911840.

The previous prime is 248486141. The next prime is 248486153. The reversal of 248486143 is 341684842.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341684842 = 2 ⋅170842421.

It is a cyclic number.

It is not a de Polignac number, because 248486143 - 2¹ = 248486141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 248486096 and 248486105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248486141) 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, 286503 + ... + 287368.

It is an arithmetic number, because the mean of its divisors is an integer number (62265112).

Almost surely, 2^248486143 is an apocalyptic number.

248486143 is a deficient number, since it is larger than the sum of its proper divisors (574305).

248486143 is an equidigital number, since it uses as much as digits as its factorization.

248486143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574304.

The product of its digits is 147456, while the sum is 40.

The square root of 248486143 is about 15763.4432469559. The cubic root of 248486143 is about 628.6863894637.

The spelling of 248486143 in words is "two hundred forty-eight million, four hundred eighty-six thousand, one hundred forty-three".