189146 has 4 divisors (see below), whose sum is σ = 283722. Its totient is φ = 94572.

The previous prime is 189139. The next prime is 189149. The reversal of 189146 is 641981.

189146 = 120² + 121² + ... + 131².

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

It can be written as a sum of positive squares in only one way, i.e., 105625 + 83521 = 325^2 + 289^2 .

It is not an unprimeable number, because it can be changed into a prime (189149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47285 + ... + 47288.

2¹⁸⁹¹⁴⁶ is an apocalyptic number.

189146 is a deficient number, since it is larger than the sum of its proper divisors (94576).

189146 is an equidigital number, since it uses as much as digits as its factorization.

189146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94575.

The product of its digits is 1728, while the sum is 29.

The square root of 189146 is about 434.9091859228. The cubic root of 189146 is about 57.4027088201.

The spelling of 189146 in words is "one hundred eighty-nine thousand, one hundred forty-six".