101860989 has 8 divisors (see below), whose sum is σ = 135922752. Its totient is φ = 67853280.

The previous prime is 101860981. The next prime is 101860999. The reversal of 101860989 is 989068101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 101860989 - 2³ = 101860981 is a prime.

It is a super-2 number, since 2×101860989² = 20751322160116242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 101860989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101860981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8889 + ... + 16814.

It is an arithmetic number, because the mean of its divisors is an integer number (16990344).

Almost surely, 2^101860989 is an apocalyptic number.

It is an amenable number.

101860989 is a deficient number, since it is larger than the sum of its proper divisors (34061763).

101860989 is a wasteful number, since it uses less digits than its factorization.

101860989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27027.

The product of its (nonzero) digits is 31104, while the sum is 42.

The square root of 101860989 is about 10092.6205219457. The cubic root of 101860989 is about 467.0205197726.

The spelling of 101860989 in words is "one hundred one million, eight hundred sixty thousand, nine hundred eighty-nine".