248146681357 has 4 divisors (see below), whose sum is σ = 248148844380. Its totient is φ = 248144518336.

The previous prime is 248146681303. The next prime is 248146681397. The reversal of 248146681357 is 753186641842.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16026040836 + 232120640521 = 126594^2 + 481789^2 .

It is a cyclic number.

It is not a de Polignac number, because 248146681357 - 2¹¹ = 248146679309 is a prime.

It is a super-2 number, since 2×248146681357² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 248146681298 and 248146681307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248146681397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 899182 + ... + 1142287.

It is an arithmetic number, because the mean of its divisors is an integer number (62037211095).

Almost surely, 2^248146681357 is an apocalyptic number.

It is an amenable number.

248146681357 is a deficient number, since it is larger than the sum of its proper divisors (2163023).

248146681357 is a wasteful number, since it uses less digits than its factorization.

248146681357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2163022.

The product of its digits is 7741440, while the sum is 55.

The spelling of 248146681357 in words is "two hundred forty-eight billion, one hundred forty-six million, six hundred eighty-one thousand, three hundred fifty-seven".