1248545471 has 2 divisors, whose sum is σ = 1248545472. Its totient is φ = 1248545470.

The previous prime is 1248545453. The next prime is 1248545513. The reversal of 1248545471 is 1745458421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1248545471 - 2²² = 1244351167 is a prime.

It is a super-3 number, since 3×1248545471³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1248545401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 624272735 + 624272736.

It is an arithmetic number, because the mean of its divisors is an integer number (624272736).

Almost surely, 2^1248545471 is an apocalyptic number.

1248545471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1248545471 is an equidigital number, since it uses as much as digits as its factorization.

1248545471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 179200, while the sum is 41.

The square root of 1248545471 is about 35334.7629254818. The cubic root of 1248545471 is about 1076.7993578161.

The spelling of 1248545471 in words is "one billion, two hundred forty-eight million, five hundred forty-five thousand, four hundred seventy-one".