189097236 has 18 divisors (see below), whose sum is σ = 477995882. Its totient is φ = 63032400.

The previous prime is 189097231. The next prime is 189097261. The reversal of 189097236 is 632790981.

It can be written as a sum of positive squares in only one way, i.e., 110880900 + 78216336 = 10530^2 + 8844^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 189097191 and 189097200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189097231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2626315 + ... + 2626386.

Almost surely, 2^189097236 is an apocalyptic number.

It is an amenable number.

189097236 is an abundant number, since it is smaller than the sum of its proper divisors (288898646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189097236 is a wasteful number, since it uses less digits than its factorization.

189097236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5252711 (or 5252706 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 189097236 is about 13751.2630692602. The cubic root of 189097236 is about 573.9777537138.

The spelling of 189097236 in words is "one hundred eighty-nine million, ninety-seven thousand, two hundred thirty-six".