101995487 has 8 divisors (see below), whose sum is σ = 114857472. Its totient is φ = 89731800.

The previous prime is 101995469. The next prime is 101995489. The reversal of 101995487 is 784599101.

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 101995487 - 2¹⁴ = 101979103 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 (101995489) 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, 149213 + ... + 149894.

It is an arithmetic number, because the mean of its divisors is an integer number (14357184).

Almost surely, 2^101995487 is an apocalyptic number.

101995487 is a deficient number, since it is larger than the sum of its proper divisors (12861985).

101995487 is a wasteful number, since it uses less digits than its factorization.

101995487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299149.

The product of its (nonzero) digits is 90720, while the sum is 44.

The square root of 101995487 is about 10099.2815090976. The cubic root of 101995487 is about 467.2259818125.

The spelling of 101995487 in words is "one hundred one million, nine hundred ninety-five thousand, four hundred eighty-seven".