248902091 has 2 divisors, whose sum is σ = 248902092. Its totient is φ = 248902090.

The previous prime is 248902081. The next prime is 248902123. The reversal of 248902091 is 190209842.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248902091 is a prime.

It is not a weakly prime, because it can be changed into another prime (248902081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124451045 + 124451046.

It is an arithmetic number, because the mean of its divisors is an integer number (124451046).

Almost surely, 2^248902091 is an apocalyptic number.

248902091 is a deficient number, since it is larger than the sum of its proper divisors (1).

248902091 is an equidigital number, since it uses as much as digits as its factorization.

248902091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 248902091 is about 15776.6311676479. The cubic root of 248902091 is about 629.0369859027.

The spelling of 248902091 in words is "two hundred forty-eight million, nine hundred two thousand, ninety-one".