248171157 has 12 divisors (see below), whose sum is σ = 386044204. Its totient is φ = 152720640.

The previous prime is 248171137. The next prime is 248171159. The reversal of 248171157 is 751171842.

It can be written as a sum of positive squares in 2 ways, for example, as 161569521 + 86601636 = 12711^2 + 9306^2 .

It is not a de Polignac number, because 248171157 - 2⁷ = 248171029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248171159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1060444 + ... + 1060677.

Almost surely, 2^248171157 is an apocalyptic number.

It is an amenable number.

248171157 is a deficient number, since it is larger than the sum of its proper divisors (137873047).

248171157 is a wasteful number, since it uses less digits than its factorization.

248171157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2121140 (or 2121137 counting only the distinct ones).

The product of its digits is 15680, while the sum is 36.

The square root of 248171157 is about 15753.4490509222. The cubic root of 248171157 is about 628.4206319958.

It can be divided in two parts, 248 and 171157, that added together give a triangular number (171405 = T₅₈₅).

The spelling of 248171157 in words is "two hundred forty-eight million, one hundred seventy-one thousand, one hundred fifty-seven".