201012989 has 8 divisors (see below), whose sum is σ = 212765280. Its totient is φ = 189378000.

The previous prime is 201012961. The next prime is 201012991. The reversal of 201012989 is 989210102.

It is a happy number.

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 201012989 - 2⁸ = 201012733 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 (201017989) 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, 25787 + ... + 32664.

It is an arithmetic number, because the mean of its divisors is an integer number (26595660).

Almost surely, 2^201012989 is an apocalyptic number.

It is an amenable number.

201012989 is a deficient number, since it is larger than the sum of its proper divisors (11752291).

201012989 is a wasteful number, since it uses less digits than its factorization.

201012989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58651.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 201012989 is about 14177.9049580677. The cubic root of 201012989 is about 585.7892179904.

The spelling of 201012989 in words is "two hundred one million, twelve thousand, nine hundred eighty-nine".