189464553 has 12 divisors (see below), whose sum is σ = 275062788. Its totient is φ = 125667360.

The previous prime is 189464503. The next prime is 189464573. The reversal of 189464553 is 355464981.

189464553 is a `hidden beast` number, since 1 + 8 + 94 + 6 + 4 + 553 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 156425049 + 33039504 = 12507^2 + 5748^2 .

It is not a de Polignac number, because 189464553 - 2⁶ = 189464489 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 189464499 and 189464508.

It is not an unprimeable number, because it can be changed into a prime (189464503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51658 + ... + 55203.

It is an arithmetic number, because the mean of its divisors is an integer number (22921899).

Almost surely, 2^189464553 is an apocalyptic number.

It is an amenable number.

189464553 is a deficient number, since it is larger than the sum of its proper divisors (85598235).

189464553 is a wasteful number, since it uses less digits than its factorization.

189464553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107064 (or 107061 counting only the distinct ones).

The product of its digits is 518400, while the sum is 45.

The square root of 189464553 is about 13764.6123447048. The cubic root of 189464553 is about 574.3491594981.

The spelling of 189464553 in words is "one hundred eighty-nine million, four hundred sixty-four thousand, five hundred fifty-three".