100088545 has 4 divisors (see below), whose sum is σ = 120106260. Its totient is φ = 80070832.

The previous prime is 100088543. The next prime is 100088551. The reversal of 100088545 is 545880001.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10653696 + 89434849 = 3264^2 + 9457^2 .

It is a cyclic number.

It is not a de Polignac number, because 100088545 - 2¹ = 100088543 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (100088543) 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, 10008850 + ... + 10008859.

It is an arithmetic number, because the mean of its divisors is an integer number (30026565).

Almost surely, 2^100088545 is an apocalyptic number.

It is an amenable number.

100088545 is a deficient number, since it is larger than the sum of its proper divisors (20017715).

100088545 is an equidigital number, since it uses as much as digits as its factorization.

100088545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20017714.

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 100088545 is about 10004.4262704065. The cubic root of 100088545 is about 464.2958394411.

The spelling of 100088545 in words is "one hundred million, eighty-eight thousand, five hundred forty-five".