189895501 has 8 divisors (see below), whose sum is σ = 193775544. Its totient is φ = 186040320.

The previous prime is 189895499. The next prime is 189895513. The reversal of 189895501 is 105598981.

189895501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 18966025 + 170929476 = 4355^2 + 13074^2 .

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 189895501 - 2¹ = 189895499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189895561) 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, 9621 + ... + 21733.

It is an arithmetic number, because the mean of its divisors is an integer number (24221943).

Almost surely, 2^189895501 is an apocalyptic number.

It is an amenable number.

189895501 is a deficient number, since it is larger than the sum of its proper divisors (3880043).

189895501 is a wasteful number, since it uses less digits than its factorization.

189895501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12431.

The product of its (nonzero) digits is 129600, while the sum is 46.

The square root of 189895501 is about 13780.2576536145. The cubic root of 189895501 is about 574.7842931284.

The spelling of 189895501 in words is "one hundred eighty-nine million, eight hundred ninety-five thousand, five hundred one".