818896131 has 6 divisors (see below), whose sum is σ = 1182849980. Its totient is φ = 545930748.

The previous prime is 818896129. The next prime is 818896139. The reversal of 818896131 is 131698818.

818896131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 818896131 - 2¹ = 818896129 is a prime.

It is a super-2 number, since 2×818896131² = 1341181746733538322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (818896139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45494221 + ... + 45494238.

Almost surely, 2^818896131 is an apocalyptic number.

818896131 is a deficient number, since it is larger than the sum of its proper divisors (363953849).

818896131 is a wasteful number, since it uses less digits than its factorization.

818896131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90988465 (or 90988462 counting only the distinct ones).

The product of its digits is 82944, while the sum is 45.

The square root of 818896131 is about 28616.3612466715. The cubic root of 818896131 is about 935.5699694274.

The spelling of 818896131 in words is "eight hundred eighteen million, eight hundred ninety-six thousand, one hundred thirty-one".