189090007 has 2 divisors, whose sum is σ = 189090008. Its totient is φ = 189090006.

The previous prime is 189089993. The next prime is 189090043. The reversal of 189090007 is 700090981.

189090007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 189090007 - 2¹⁹ = 188565719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189090047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94545003 + 94545004.

It is an arithmetic number, because the mean of its divisors is an integer number (94545004).

Almost surely, 2^189090007 is an apocalyptic number.

189090007 is a deficient number, since it is larger than the sum of its proper divisors (1).

189090007 is an equidigital number, since it uses as much as digits as its factorization.

189090007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 189090007 is about 13751.0002181659. Note that the first 3 decimals coincide. The cubic root of 189090007 is about 573.9704394203.

The spelling of 189090007 in words is "one hundred eighty-nine million, ninety thousand, seven".