189020723 has 2 divisors, whose sum is σ = 189020724. Its totient is φ = 189020722.

The previous prime is 189020717. The next prime is 189020729. The reversal of 189020723 is 327020981.

It is a balanced prime because it is at equal distance from previous prime (189020717) and next prime (189020729).

It is a cyclic number.

It is not a de Polignac number, because 189020723 - 2⁶ = 189020659 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 189020723.

It is not a weakly prime, because it can be changed into another prime (189020729) 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 as a sum of consecutive naturals, namely, 94510361 + 94510362.

It is an arithmetic number, because the mean of its divisors is an integer number (94510362).

Almost surely, 2^189020723 is an apocalyptic number.

189020723 is a deficient number, since it is larger than the sum of its proper divisors (1).

189020723 is an equidigital number, since it uses as much as digits as its factorization.

189020723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 189020723 is about 13748.4807524322. The cubic root of 189020723 is about 573.9003284953.

The spelling of 189020723 in words is "one hundred eighty-nine million, twenty thousand, seven hundred twenty-three".