189371752 has 8 divisors (see below), whose sum is σ = 355072050. Its totient is φ = 94685872.

The previous prime is 189371737. The next prime is 189371753. The reversal of 189371752 is 257173981.

It can be written as a sum of positive squares in only one way, i.e., 114618436 + 74753316 = 10706^2 + 8646^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 189371699 and 189371708.

It is not an unprimeable number, because it can be changed into a prime (189371753) 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 as a sum of consecutive naturals, namely, 11835727 + ... + 11835742.

Almost surely, 2^189371752 is an apocalyptic number.

It is an amenable number.

189371752 is a deficient number, since it is larger than the sum of its proper divisors (165700298).

189371752 is a wasteful number, since it uses less digits than its factorization.

189371752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23671475 (or 23671471 counting only the distinct ones).

The product of its digits is 105840, while the sum is 43.

The square root of 189371752 is about 13761.2409324159. The cubic root of 189371752 is about 574.2553708357.

The spelling of 189371752 in words is "one hundred eighty-nine million, three hundred seventy-one thousand, seven hundred fifty-two".