190931443 has 2 divisors, whose sum is σ = 190931444. Its totient is φ = 190931442.

The previous prime is 190931423. The next prime is 190931453. The reversal of 190931443 is 344139091.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190931443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 190931399 and 190931408.

It is not a weakly prime, because it can be changed into another prime (190931423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95465721 + 95465722.

It is an arithmetic number, because the mean of its divisors is an integer number (95465722).

Almost surely, 2^190931443 is an apocalyptic number.

190931443 is a deficient number, since it is larger than the sum of its proper divisors (1).

190931443 is an equidigital number, since it uses as much as digits as its factorization.

190931443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 190931443 is about 13817.7944332661. The cubic root of 190931443 is about 575.8276102471.

The spelling of 190931443 in words is "one hundred ninety million, nine hundred thirty-one thousand, four hundred forty-three".