816965126 has 8 divisors (see below), whose sum is σ = 1226228520. Its totient is φ = 408222288.

The previous prime is 816965117. The next prime is 816965147. The reversal of 816965126 is 621569618.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126191 + ... + 132506.

It is an arithmetic number, because the mean of its divisors is an integer number (153278565).

Almost surely, 2^816965126 is an apocalyptic number.

816965126 is a deficient number, since it is larger than the sum of its proper divisors (409263394).

816965126 is a wasteful number, since it uses less digits than its factorization.

816965126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260278.

The product of its digits is 155520, while the sum is 44.

The square root of 816965126 is about 28582.6018059938. The cubic root of 816965126 is about 934.8340144026.

The spelling of 816965126 in words is "eight hundred sixteen million, nine hundred sixty-five thousand, one hundred twenty-six".