8145093731 has 4 divisors (see below), whose sum is σ = 8145337200. Its totient is φ = 8144850264.

The previous prime is 8145093713. The next prime is 8145093757. The reversal of 8145093731 is 1373905418.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1373905418 = 2 ⋅686952709.

It is a cyclic number.

It is not a de Polignac number, because 8145093731 - 2¹⁰ = 8145092707 is a prime.

It is a super-2 number, since 2×8145093731² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8145093331) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 61676 + ... + 141753.

It is an arithmetic number, because the mean of its divisors is an integer number (2036334300).

Almost surely, 2^8145093731 is an apocalyptic number.

8145093731 is a deficient number, since it is larger than the sum of its proper divisors (243469).

8145093731 is a wasteful number, since it uses less digits than its factorization.

8145093731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243468.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 8145093731 is about 90250.1730247649. The cubic root of 8145093731 is about 2012.0187741076.

The spelling of 8145093731 in words is "eight billion, one hundred forty-five million, ninety-three thousand, seven hundred thirty-one".