100087539 has 4 divisors (see below), whose sum is σ = 133450056. Its totient is φ = 66725024.

The previous prime is 100087523. The next prime is 100087567. The reversal of 100087539 is 935780001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100087539 - 2⁴ = 100087523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (104087539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16681254 + ... + 16681259.

It is an arithmetic number, because the mean of its divisors is an integer number (33362514).

Almost surely, 2^100087539 is an apocalyptic number.

100087539 is a deficient number, since it is larger than the sum of its proper divisors (33362517).

100087539 is an equidigital number, since it uses as much as digits as its factorization.

100087539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33362516.

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 100087539 is about 10004.3759925345. The cubic root of 100087539 is about 464.2942838745.

The spelling of 100087539 in words is "one hundred million, eighty-seven thousand, five hundred thirty-nine".