100993481 has 8 divisors (see below), whose sum is σ = 107645184. Its totient is φ = 94420800.

The previous prime is 100993471. The next prime is 100993511. The reversal of 100993481 is 184399001.

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 100993481 - 2¹⁰ = 100992457 is a prime.

It is a super-2 number, since 2×100993481² = 20399366408994722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100993471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17105 + ... + 22238.

It is an arithmetic number, because the mean of its divisors is an integer number (13455648).

Almost surely, 2^100993481 is an apocalyptic number.

It is an amenable number.

100993481 is a deficient number, since it is larger than the sum of its proper divisors (6651703).

100993481 is a wasteful number, since it uses less digits than its factorization.

100993481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39511.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 100993481 is about 10049.5512835151. The cubic root of 100993481 is about 465.6909310780.

The spelling of 100993481 in words is "one hundred million, nine hundred ninety-three thousand, four hundred eighty-one".