100024721 has 8 divisors (see below), whose sum is σ = 105410400. Its totient is φ = 94651200.

The previous prime is 100024709. The next prime is 100024739. The reversal of 100024721 is 127420001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100024721 is a prime.

It is a super-2 number, since 2×100024721² = 20009889622255682, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100024721.

It is not an unprimeable number, because it can be changed into a prime (100024781) 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, 17465 + ... + 22473.

It is an arithmetic number, because the mean of its divisors is an integer number (13176300).

Almost surely, 2^100024721 is an apocalyptic number.

It is an amenable number.

100024721 is a deficient number, since it is larger than the sum of its proper divisors (5385679).

100024721 is a wasteful number, since it uses less digits than its factorization.

100024721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6079.

The product of its (nonzero) digits is 112, while the sum is 17.

The square root of 100024721 is about 10001.2359736185. The cubic root of 100024721 is about 464.1971284491.

Adding to 100024721 its reverse (127420001), we get a palindrome (227444722).

The spelling of 100024721 in words is "one hundred million, twenty-four thousand, seven hundred twenty-one".