100442541 has 16 divisors (see below), whose sum is σ = 140428800. Its totient is φ = 63737520.

The previous prime is 100442527. The next prime is 100442543. The reversal of 100442541 is 145244001.

It is a happy number.

It is not a de Polignac number, because 100442541 - 2⁷ = 100442413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100442543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11110 + ... + 18008.

It is an arithmetic number, because the mean of its divisors is an integer number (8776800).

Almost surely, 2^100442541 is an apocalyptic number.

It is an amenable number.

100442541 is a deficient number, since it is larger than the sum of its proper divisors (39986259).

100442541 is a wasteful number, since it uses less digits than its factorization.

100442541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7136.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 100442541 is about 10022.1026237013. The cubic root of 100442541 is about 464.8425736024.

Adding to 100442541 its reverse (145244001), we get a palindrome (245686542).

The spelling of 100442541 in words is "one hundred million, four hundred forty-two thousand, five hundred forty-one".