100578545 has 8 divisors (see below), whose sum is σ = 127794024. Its totient is φ = 75729664.

The previous prime is 100578521. The next prime is 100578553. The reversal of 100578545 is 545875001.

It can be written as a sum of positive squares in 4 ways, for example, as 33223696 + 67354849 = 5764^2 + 8207^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100578545 - 2¹⁶ = 100513009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 591554 + ... + 591723.

It is an arithmetic number, because the mean of its divisors is an integer number (15974253).

Almost surely, 2^100578545 is an apocalyptic number.

It is an amenable number.

100578545 is a deficient number, since it is larger than the sum of its proper divisors (27215479).

100578545 is a wasteful number, since it uses less digits than its factorization.

100578545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183299.

The product of its (nonzero) digits is 28000, while the sum is 35.

The square root of 100578545 is about 10028.8855313041. The cubic root of 100578545 is about 465.0522853297.

The spelling of 100578545 in words is "one hundred million, five hundred seventy-eight thousand, five hundred forty-five".