100813557 has 8 divisors (see below), whose sum is σ = 144757984. Its totient is φ = 62039088.

The previous prime is 100813529. The next prime is 100813589. The reversal of 100813557 is 755318001.

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

It is not a de Polignac number, because 100813557 - 2¹¹ = 100811509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100813507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1292443 + ... + 1292520.

It is an arithmetic number, because the mean of its divisors is an integer number (18094748).

Almost surely, 2^100813557 is an apocalyptic number.

It is an amenable number.

100813557 is a deficient number, since it is larger than the sum of its proper divisors (43944427).

100813557 is a wasteful number, since it uses less digits than its factorization.

100813557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2584979.

The product of its (nonzero) digits is 4200, while the sum is 30.

The square root of 100813557 is about 10040.5954504701. The cubic root of 100813557 is about 465.4142175668.

The spelling of 100813557 in words is "one hundred million, eight hundred thirteen thousand, five hundred fifty-seven".