189240136 has 16 divisors (see below), whose sum is σ = 370252800. Its totient is φ = 90506064.

The previous prime is 189240131. The next prime is 189240137. The reversal of 189240136 is 631042981.

It is not an unprimeable number, because it can be changed into a prime (189240131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 514056 + ... + 514423.

It is an arithmetic number, because the mean of its divisors is an integer number (23140800).

Almost surely, 2^189240136 is an apocalyptic number.

It is an amenable number.

189240136 is a deficient number, since it is larger than the sum of its proper divisors (181012664).

189240136 is a wasteful number, since it uses less digits than its factorization.

189240136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028508 (or 1028504 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 189240136 is about 13756.4579743479. The cubic root of 189240136 is about 574.1223015142.

The spelling of 189240136 in words is "one hundred eighty-nine million, two hundred forty thousand, one hundred thirty-six".