101229989 has 8 divisors (see below), whose sum is σ = 116429568. Its totient is φ = 86214960.

The previous prime is 101229979. The next prime is 101229991. The reversal of 101229989 is 989922101.

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 101229989 - 2¹² = 101225893 is a prime.

It is a super-3 number, since 3×101229989³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101229979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44957 + ... + 47154.

It is an arithmetic number, because the mean of its divisors is an integer number (14553696).

Almost surely, 2^101229989 is an apocalyptic number.

It is an amenable number.

101229989 is a deficient number, since it is larger than the sum of its proper divisors (15199579).

101229989 is an equidigital number, since it uses as much as digits as its factorization.

101229989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92275.

The product of its (nonzero) digits is 23328, while the sum is 41.

The square root of 101229989 is about 10061.3114950289. The cubic root of 101229989 is about 466.0541682751.

The spelling of 101229989 in words is "one hundred one million, two hundred twenty-nine thousand, nine hundred eighty-nine".