100321541 has 8 divisors (see below), whose sum is σ = 103338264. Its totient is φ = 97320960.

The previous prime is 100321523. The next prime is 100321567. The reversal of 100321541 is 145123001.

It can be written as a sum of positive squares in 4 ways, for example, as 39325441 + 60996100 = 6271^2 + 7810^2 .

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 100321541 - 2⁶ = 100321477 is a prime.

It is a super-2 number, since 2×100321541² = 20128823177229362, which contains 22 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 (100321591) 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, 9221 + ... + 16901.

It is an arithmetic number, because the mean of its divisors is an integer number (12917283).

Almost surely, 2^100321541 is an apocalyptic number.

It is an amenable number.

100321541 is a deficient number, since it is larger than the sum of its proper divisors (3016723).

100321541 is an equidigital number, since it uses as much as digits as its factorization.

100321541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8071.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 100321541 is about 10016.0641471588. The cubic root of 100321541 is about 464.6558381418.

Adding to 100321541 its reverse (145123001), we get a palindrome (245444542).

The spelling of 100321541 in words is "one hundred million, three hundred twenty-one thousand, five hundred forty-one".