189846553 has 4 divisors (see below), whose sum is σ = 204450148. Its totient is φ = 175242960.

The previous prime is 189846541. The next prime is 189846563. The reversal of 189846553 is 355648981.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 82682649 + 107163904 = 9093^2 + 10352^2 .

It is a cyclic number.

It is not a de Polignac number, because 189846553 - 2⁵ = 189846521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 189846497 and 189846506.

It is not an unprimeable number, because it can be changed into a prime (189846533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7301778 + ... + 7301803.

It is an arithmetic number, because the mean of its divisors is an integer number (51112537).

Almost surely, 2^189846553 is an apocalyptic number.

189846553 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

189846553 is a deficient number, since it is larger than the sum of its proper divisors (14603595).

189846553 is a wasteful number, since it uses less digits than its factorization.

189846553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14603594.

The product of its digits is 1036800, while the sum is 49.

The square root of 189846553 is about 13778.4815201095. The cubic root of 189846553 is about 574.7349028776.

The spelling of 189846553 in words is "one hundred eighty-nine million, eight hundred forty-six thousand, five hundred fifty-three".