248317091 has 8 divisors (see below), whose sum is σ = 271038000. Its totient is φ = 225620640.

The previous prime is 248317087. The next prime is 248317103. The reversal of 248317091 is 190713842.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 248317091 - 2² = 248317087 is a prime.

It is a super-2 number, since 2×248317091² = 123322755365404562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248337091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19985 + ... + 29933.

It is an arithmetic number, because the mean of its divisors is an integer number (33879750).

Almost surely, 2^248317091 is an apocalyptic number.

248317091 is a deficient number, since it is larger than the sum of its proper divisors (22720909).

248317091 is a wasteful number, since it uses less digits than its factorization.

248317091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12229.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 248317091 is about 15758.0801812911. The cubic root of 248317091 is about 628.5437862032.

The spelling of 248317091 in words is "two hundred forty-eight million, three hundred seventeen thousand, ninety-one".