1931930133 has 16 divisors (see below), whose sum is σ = 3117064320. Its totient is φ = 1039021056.

The previous prime is 1931930131. The next prime is 1931930171. The reversal of 1931930133 is 3310391391.

It is not a de Polignac number, because 1931930133 - 2¹ = 1931930131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1931930094 and 1931930103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1931930131) 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, 2705428 + ... + 2706141.

It is an arithmetic number, because the mean of its divisors is an integer number (194816520).

Almost surely, 2^1931930133 is an apocalyptic number.

It is an amenable number.

1931930133 is a deficient number, since it is larger than the sum of its proper divisors (1185134187).

1931930133 is a wasteful number, since it uses less digits than its factorization.

1931930133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5411596.

The product of its (nonzero) digits is 6561, while the sum is 33.

The square root of 1931930133 is about 43953.7271798422. The cubic root of 1931930133 is about 1245.4619733617.

The spelling of 1931930133 in words is "one billion, nine hundred thirty-one million, nine hundred thirty thousand, one hundred thirty-three".