189374517 has 32 divisors (see below), whose sum is σ = 286619520. Its totient is φ = 125096400.

The previous prime is 189374491. The next prime is 189374519. The reversal of 189374517 is 715473981.

It is not a de Polignac number, because 189374517 - 2¹⁰ = 189373493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189374519) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 286167 + ... + 286827.

It is an arithmetic number, because the mean of its divisors is an integer number (8956860).

Almost surely, 2^189374517 is an apocalyptic number.

It is an amenable number.

189374517 is a deficient number, since it is larger than the sum of its proper divisors (97245003).

189374517 is an frugal number, since it uses more digits than its factorization.

189374517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813 (or 795 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 189374517 is about 13761.3413953728. The cubic root of 189374517 is about 574.2581657058.

The spelling of 189374517 in words is "one hundred eighty-nine million, three hundred seventy-four thousand, five hundred seventeen".