189505835 has 4 divisors (see below), whose sum is σ = 227407008. Its totient is φ = 151604664.

The previous prime is 189505819. The next prime is 189505847. The reversal of 189505835 is 538505981.

189505835 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 a cyclic number.

It is not a de Polignac number, because 189505835 - 2⁴ = 189505819 is a prime.

It is a super-2 number, since 2×189505835² = 71824922998094450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18950579 + ... + 18950588.

It is an arithmetic number, because the mean of its divisors is an integer number (56851752).

Almost surely, 2^189505835 is an apocalyptic number.

189505835 is a deficient number, since it is larger than the sum of its proper divisors (37901173).

189505835 is an equidigital number, since it uses as much as digits as its factorization.

189505835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37901172.

The product of its (nonzero) digits is 216000, while the sum is 44.

The square root of 189505835 is about 13766.1118330486. Note that the first 3 decimals coincide. The cubic root of 189505835 is about 574.3908710122.

The spelling of 189505835 in words is "one hundred eighty-nine million, five hundred five thousand, eight hundred thirty-five".