100145541 has 16 divisors (see below), whose sum is σ = 134956800. Its totient is φ = 66053568.

The previous prime is 100145533. The next prime is 100145621. The reversal of 100145541 is 145541001.

It is not a de Polignac number, because 100145541 - 2³ = 100145533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100145141) 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 15 ways as a sum of consecutive naturals, for example, 140895 + ... + 141603.

It is an arithmetic number, because the mean of its divisors is an integer number (8434800).

Almost surely, 2^100145541 is an apocalyptic number.

It is an amenable number.

100145541 is a deficient number, since it is larger than the sum of its proper divisors (34811259).

100145541 is a wasteful number, since it uses less digits than its factorization.

100145541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 100145541 is about 10007.2744041522. The cubic root of 100145541 is about 464.3839546997.

Adding to 100145541 its reverse (145541001), we get a palindrome (245686542).

The spelling of 100145541 in words is "one hundred million, one hundred forty-five thousand, five hundred forty-one".