248904881 has 2 divisors, whose sum is σ = 248904882. Its totient is φ = 248904880.

The previous prime is 248904869. The next prime is 248904899. The reversal of 248904881 is 188409842.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 239754256 + 9150625 = 15484^2 + 3025^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248904881 is a prime.

It is a super-2 number, since 2×248904881² = 123907279571248322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (248904811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124452440 + 124452441.

It is an arithmetic number, because the mean of its divisors is an integer number (124452441).

Almost surely, 2^248904881 is an apocalyptic number.

It is an amenable number.

248904881 is a deficient number, since it is larger than the sum of its proper divisors (1).

248904881 is an equidigital number, since it uses as much as digits as its factorization.

248904881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 147456, while the sum is 44.

The square root of 248904881 is about 15776.7195893189. The cubic root of 248904881 is about 629.0393362334.

The spelling of 248904881 in words is "two hundred forty-eight million, nine hundred four thousand, eight hundred eighty-one".