189055407 has 4 divisors (see below), whose sum is σ = 252073880. Its totient is φ = 126036936.

The previous prime is 189055343. The next prime is 189055417. The reversal of 189055407 is 704550981.

189055407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 189055407 - 2⁶ = 189055343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189055417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31509232 + ... + 31509237.

It is an arithmetic number, because the mean of its divisors is an integer number (63018470).

Almost surely, 2^189055407 is an apocalyptic number.

189055407 is a deficient number, since it is larger than the sum of its proper divisors (63018473).

189055407 is an equidigital number, since it uses as much as digits as its factorization.

189055407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63018472.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 189055407 is about 13749.7420703081. The cubic root of 189055407 is about 573.9354286002.

The spelling of 189055407 in words is "one hundred eighty-nine million, fifty-five thousand, four hundred seven".