248020155 has 24 divisors (see below), whose sum is σ = 448594848. Its totient is φ = 126525696.

The previous prime is 248020121. The next prime is 248020177. The reversal of 248020155 is 551020842.

It is a happy number.

It is not a de Polignac number, because 248020155 - 2⁸ = 248019899 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118782 + ... + 120851.

It is an arithmetic number, because the mean of its divisors is an integer number (18691452).

Almost surely, 2^248020155 is an apocalyptic number.

248020155 is a deficient number, since it is larger than the sum of its proper divisors (200574693).

248020155 is a wasteful number, since it uses less digits than its factorization.

248020155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239667 (or 239664 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 248020155 is about 15748.6556569124. The cubic root of 248020155 is about 628.2931500514.

Adding to 248020155 its reverse (551020842), we get a palindrome (799040997).

The spelling of 248020155 in words is "two hundred forty-eight million, twenty thousand, one hundred fifty-five".