100042589 has 4 divisors (see below), whose sum is σ = 100108320. Its totient is φ = 99976860.

The previous prime is 100042577. The next prime is 100042597. The reversal of 100042589 is 985240001.

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 100042589 - 2⁴ = 100042573 is a prime.

It is a super-2 number, since 2×100042589² = 20017039227645842, 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 (100042559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30527 + ... + 33644.

It is an arithmetic number, because the mean of its divisors is an integer number (25027080).

Almost surely, 2^100042589 is an apocalyptic number.

It is an amenable number.

100042589 is a deficient number, since it is larger than the sum of its proper divisors (65731).

100042589 is an equidigital number, since it uses as much as digits as its factorization.

100042589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65730.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 100042589 is about 10002.1292233204. The cubic root of 100042589 is about 464.2247675513.

The spelling of 100042589 in words is "one hundred million, forty-two thousand, five hundred eighty-nine".