189501285 has 8 divisors (see below), whose sum is σ = 303202080. Its totient is φ = 101067344.

The previous prime is 189501281. The next prime is 189501293. The reversal of 189501285 is 582105981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 189501285 - 2² = 189501281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189501281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6316695 + ... + 6316724.

It is an arithmetic number, because the mean of its divisors is an integer number (37900260).

Almost surely, 2^189501285 is an apocalyptic number.

189501285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

189501285 is a deficient number, since it is larger than the sum of its proper divisors (113700795).

189501285 is a wasteful number, since it uses less digits than its factorization.

189501285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12633427.

The product of its (nonzero) digits is 28800, while the sum is 39.

The square root of 189501285 is about 13765.9465711588. The cubic root of 189501285 is about 574.3862739693.

The spelling of 189501285 in words is "one hundred eighty-nine million, five hundred one thousand, two hundred eighty-five".