919683081 has 6 divisors (see below), whose sum is σ = 1328431130. Its totient is φ = 613122048.

The previous prime is 919683041. The next prime is 919683101. The reversal of 919683081 is 180386919.

It can be written as a sum of positive squares in only one way, i.e., 877107456 + 42575625 = 29616^2 + 6525^2 .

It is a de Polignac number, because none of the positive numbers 2^k-919683081 is a prime.

It is a super-3 number, since 3×919683081³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (919683041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51093496 + ... + 51093513.

Almost surely, 2^919683081 is an apocalyptic number.

It is an amenable number.

919683081 is a deficient number, since it is larger than the sum of its proper divisors (408748049).

919683081 is a wasteful number, since it uses less digits than its factorization.

919683081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102187015 (or 102187012 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The square root of 919683081 is about 30326.2770712133. The cubic root of 919683081 is about 972.4771351761.

The spelling of 919683081 in words is "nine hundred nineteen million, six hundred eighty-three thousand, eighty-one".