189351674 has 4 divisors (see below), whose sum is σ = 284027514. Its totient is φ = 94675836.

The previous prime is 189351649. The next prime is 189351677. The reversal of 189351674 is 476153981.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 476153981 = 23 ⋅20702347.

It can be written as a sum of positive squares in only one way, i.e., 158936449 + 30415225 = 12607^2 + 5515^2 .

It is not an unprimeable number, because it can be changed into a prime (189351677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47337917 + ... + 47337920.

Almost surely, 2^189351674 is an apocalyptic number.

189351674 is a deficient number, since it is larger than the sum of its proper divisors (94675840).

189351674 is an equidigital number, since it uses as much as digits as its factorization.

189351674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94675839.

The product of its digits is 181440, while the sum is 44.

The square root of 189351674 is about 13760.5114003804. The cubic root of 189351674 is about 574.2350751180.

The spelling of 189351674 in words is "one hundred eighty-nine million, three hundred fifty-one thousand, six hundred seventy-four".