248145479 has 2 divisors, whose sum is σ = 248145480. Its totient is φ = 248145478.

The previous prime is 248145473. The next prime is 248145503. The reversal of 248145479 is 974541842.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 248145479 - 2⁴ = 248145463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (248145473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124072739 + 124072740.

It is an arithmetic number, because the mean of its divisors is an integer number (124072740).

Almost surely, 2^248145479 is an apocalyptic number.

248145479 is a deficient number, since it is larger than the sum of its proper divisors (1).

248145479 is an equidigital number, since it uses as much as digits as its factorization.

248145479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 44.

The square root of 248145479 is about 15752.6340337100. The cubic root of 248145479 is about 628.3989572482.

The spelling of 248145479 in words is "two hundred forty-eight million, one hundred forty-five thousand, four hundred seventy-nine".