101201987 has 8 divisors (see below), whose sum is σ = 102102000. Its totient is φ = 100306080.

The previous prime is 101201953. The next prime is 101202019. The reversal of 101201987 is 789102101.

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 101201987 - 2¹⁴ = 101185603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101291987) 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, 66764 + ... + 68262.

It is an arithmetic number, because the mean of its divisors is an integer number (12762750).

Almost surely, 2^101201987 is an apocalyptic number.

101201987 is a deficient number, since it is larger than the sum of its proper divisors (900013).

101201987 is a wasteful number, since it uses less digits than its factorization.

101201987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053.

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 101201987 is about 10059.9198306945. The cubic root of 101201987 is about 466.0111913784.

The spelling of 101201987 in words is "one hundred one million, two hundred one thousand, nine hundred eighty-seven".