1681934133 has 16 divisors (see below), whose sum is σ = 2552818176. Its totient is φ = 975033840.

The previous prime is 1681934099. The next prime is 1681934143. The reversal of 1681934133 is 3314391861.

It is not a de Polignac number, because 1681934133 - 2¹⁰ = 1681933109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1681934091 and 1681934100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1681934143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1107235 + ... + 1108752.

It is an arithmetic number, because the mean of its divisors is an integer number (159551136).

Almost surely, 2^1681934133 is an apocalyptic number.

It is an amenable number.

1681934133 is a deficient number, since it is larger than the sum of its proper divisors (870884043).

1681934133 is a wasteful number, since it uses less digits than its factorization.

1681934133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216024.

The product of its digits is 46656, while the sum is 39.

The square root of 1681934133 is about 41011.3902836761. The cubic root of 1681934133 is about 1189.2404193869.

The spelling of 1681934133 in words is "one billion, six hundred eighty-one million, nine hundred thirty-four thousand, one hundred thirty-three".