100240481 has 4 divisors (see below), whose sum is σ = 109353264. Its totient is φ = 91127700.

The previous prime is 100240477. The next prime is 100240499. The reversal of 100240481 is 184042001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100240481 - 2² = 100240477 is a prime.

It is a super-2 number, since 2×100240481² = 20096308062222722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100240421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4556375 + ... + 4556396.

It is an arithmetic number, because the mean of its divisors is an integer number (27338316).

Almost surely, 2^100240481 is an apocalyptic number.

100240481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100240481 is a deficient number, since it is larger than the sum of its proper divisors (9112783).

100240481 is an equidigital number, since it uses as much as digits as its factorization.

100240481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9112782.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 100240481 is about 10012.0168297901. The cubic root of 100240481 is about 464.5306568136.

Adding to 100240481 its reverse (184042001), we get a palindrome (284282482).

The spelling of 100240481 in words is "one hundred million, two hundred forty thousand, four hundred eighty-one".