189852129 has 24 divisors (see below), whose sum is σ = 280949760. Its totient is φ = 123484608.

The previous prime is 189852119. The next prime is 189852137. The reversal of 189852129 is 921258981.

189852129 is a `hidden beast` number, since 18 + 98 + 521 + 29 = 666.

189852129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 189852129 - 2⁸ = 189851873 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (189852119) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 202149 + ... + 203085.

It is an arithmetic number, because the mean of its divisors is an integer number (11706240).

Almost surely, 2^189852129 is an apocalyptic number.

It is an amenable number.

189852129 is a deficient number, since it is larger than the sum of its proper divisors (91097631).

189852129 is a wasteful number, since it uses less digits than its factorization.

189852129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469 (or 1466 counting only the distinct ones).

The product of its digits is 103680, while the sum is 45.

The square root of 189852129 is about 13778.6838631271. The cubic root of 189852129 is about 574.7405296858.

It can be divided in two parts, 189852 and 129, that added together give a palindrome (189981).

The spelling of 189852129 in words is "one hundred eighty-nine million, eight hundred fifty-two thousand, one hundred twenty-nine".