189812151 has 6 divisors (see below), whose sum is σ = 274173120. Its totient is φ = 126541428.

The previous prime is 189812131. The next prime is 189812153. The reversal of 189812151 is 151218981.

It is not a de Polignac number, because 189812151 - 2⁶ = 189812087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189812153) 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, 10545111 + ... + 10545128.

It is an arithmetic number, because the mean of its divisors is an integer number (45695520).

Almost surely, 2^189812151 is an apocalyptic number.

189812151 is a deficient number, since it is larger than the sum of its proper divisors (84360969).

189812151 is a wasteful number, since it uses less digits than its factorization.

189812151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21090245 (or 21090242 counting only the distinct ones).

The product of its digits is 5760, while the sum is 36.

The square root of 189812151 is about 13777.2330676373. The cubic root of 189812151 is about 574.7001849712.

The spelling of 189812151 in words is "one hundred eighty-nine million, eight hundred twelve thousand, one hundred fifty-one".