189452537 has 4 divisors (see below), whose sum is σ = 189480180. Its totient is φ = 189424896.

The previous prime is 189452531. The next prime is 189452551. The reversal of 189452537 is 735254981.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 154157056 + 35295481 = 12416^2 + 5941^2 .

It is a cyclic number.

It is not a de Polignac number, because 189452537 - 2⁴ = 189452521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189452531) 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, 5033 + ... + 20105.

It is an arithmetic number, because the mean of its divisors is an integer number (47370045).

Almost surely, 2^189452537 is an apocalyptic number.

It is an amenable number.

189452537 is a deficient number, since it is larger than the sum of its proper divisors (27643).

189452537 is a wasteful number, since it uses less digits than its factorization.

189452537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27642.

The product of its digits is 302400, while the sum is 44.

The square root of 189452537 is about 13764.1758561855. The cubic root of 189452537 is about 574.3370173404.

The spelling of 189452537 in words is "one hundred eighty-nine million, four hundred fifty-two thousand, five hundred thirty-seven".