101216489 has 8 divisors (see below), whose sum is σ = 110943840. Its totient is φ = 91576800.

The previous prime is 101216483. The next prime is 101216501. The reversal of 101216489 is 984612101.

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 101216489 - 2¹² = 101212393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101216483) 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, 19484 + ... + 24125.

It is an arithmetic number, because the mean of its divisors is an integer number (13867980).

Almost surely, 2^101216489 is an apocalyptic number.

It is an amenable number.

101216489 is a deficient number, since it is larger than the sum of its proper divisors (9727351).

101216489 is a wasteful number, since it uses less digits than its factorization.

101216489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43831.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 101216489 is about 10060.6405859667. The cubic root of 101216489 is about 466.0334497408.

The spelling of 101216489 in words is "one hundred one million, two hundred sixteen thousand, four hundred eighty-nine".