189846157 has 16 divisors (see below), whose sum is σ = 212509440. Its totient is φ = 168542208.

The previous prime is 189846143. The next prime is 189846211. The reversal of 189846157 is 751648981.

It is a cyclic number.

It is not a de Polignac number, because 189846157 - 2⁷ = 189846029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 189846157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189846857) 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 15 ways as a sum of consecutive naturals, for example, 81868 + ... + 84154.

It is an arithmetic number, because the mean of its divisors is an integer number (13281840).

Almost surely, 2^189846157 is an apocalyptic number.

189846157 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

189846157 is a deficient number, since it is larger than the sum of its proper divisors (22663283).

189846157 is a wasteful number, since it uses less digits than its factorization.

189846157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2580.

The product of its digits is 483840, while the sum is 49.

The square root of 189846157 is about 13778.4671498683. The cubic root of 189846157 is about 574.7345032651.

The spelling of 189846157 in words is "one hundred eighty-nine million, eight hundred forty-six thousand, one hundred fifty-seven".