101995587 has 6 divisors (see below), whose sum is σ = 147326972. Its totient is φ = 67997052.

The previous prime is 101995573. The next prime is 101995603. The reversal of 101995587 is 785599101.

101995587 is a `hidden beast` number, since 1 + 0 + 1 + 99 + 558 + 7 = 666.

It is not a de Polignac number, because 101995587 - 2⁴ = 101995571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101995567) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5666413 + ... + 5666430.

Almost surely, 2^101995587 is an apocalyptic number.

101995587 is a deficient number, since it is larger than the sum of its proper divisors (45331385).

101995587 is a wasteful number, since it uses less digits than its factorization.

101995587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11332849 (or 11332846 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 45.

The square root of 101995587 is about 10099.2864599436. The cubic root of 101995587 is about 467.2261345074.

The spelling of 101995587 in words is "one hundred one million, nine hundred ninety-five thousand, five hundred eighty-seven".