931930190 has 16 divisors (see below), whose sum is σ = 1680285600. Its totient is φ = 372147360.

The previous prime is 931930171. The next prime is 931930199. The reversal of 931930190 is 91039139.

It is a happy number.

It is a super-2 number, since 2×931930190² = 1736987758066872200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 931930190.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (931930199) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 71801 + ... + 83780.

It is an arithmetic number, because the mean of its divisors is an integer number (105017850).

Almost surely, 2^931930190 is an apocalyptic number.

931930190 is a deficient number, since it is larger than the sum of its proper divisors (748355410).

931930190 is a wasteful number, since it uses less digits than its factorization.

931930190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156187.

The product of its (nonzero) digits is 6561, while the sum is 35.

The square root of 931930190 is about 30527.5316722463. The cubic root of 931930190 is about 976.7748308001.

The spelling of 931930190 in words is "nine hundred thirty-one million, nine hundred thirty thousand, one hundred ninety".