101986287 has 16 divisors (see below), whose sum is σ = 149560320. Its totient is φ = 61424352.

The previous prime is 101986277. The next prime is 101986303. The reversal of 101986287 is 782689101.

It is not a de Polignac number, because 101986287 - 2⁶ = 101986223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101986267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25987 + ... + 29652.

It is an arithmetic number, because the mean of its divisors is an integer number (9347520).

Almost surely, 2^101986287 is an apocalyptic number.

101986287 is a deficient number, since it is larger than the sum of its proper divisors (47574033).

101986287 is a wasteful number, since it uses less digits than its factorization.

101986287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55702.

The product of its (nonzero) digits is 48384, while the sum is 42.

The square root of 101986287 is about 10098.8260208799. The cubic root of 101986287 is about 467.2119334514.

The spelling of 101986287 in words is "one hundred one million, nine hundred eighty-six thousand, two hundred eighty-seven".