189849051 has 24 divisors (see below), whose sum is σ = 324211680. Its totient is φ = 104743296.

The previous prime is 189849029. The next prime is 189849067. The reversal of 189849051 is 150948981.

It is not a de Polignac number, because 189849051 - 2⁶ = 189848987 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 189848988 and 189849006.

It is not an unprimeable number, because it can be changed into a prime (189849091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50130 + ... + 53783.

It is an arithmetic number, because the mean of its divisors is an integer number (13508820).

Almost surely, 2^189849051 is an apocalyptic number.

189849051 is a deficient number, since it is larger than the sum of its proper divisors (134362629).

189849051 is a wasteful number, since it uses less digits than its factorization.

189849051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103955 (or 103952 counting only the distinct ones).

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

The square root of 189849051 is about 13778.5721684070. The cubic root of 189849051 is about 574.7374236528.

The spelling of 189849051 in words is "one hundred eighty-nine million, eight hundred forty-nine thousand, fifty-one".