100564775 has 36 divisors (see below), whose sum is σ = 137044800. Its totient is φ = 73113600.

The previous prime is 100564703. The next prime is 100564781. The reversal of 100564775 is 577465001.

It is not a de Polignac number, because 100564775 - 2¹² = 100560679 is a prime.

It is a super-2 number, since 2×100564775² = 20226547941601250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 223751 + ... + 224199.

It is an arithmetic number, because the mean of its divisors is an integer number (3806800).

Almost surely, 2^100564775 is an apocalyptic number.

100564775 is a deficient number, since it is larger than the sum of its proper divisors (36480025).

100564775 is a wasteful number, since it uses less digits than its factorization.

100564775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524 (or 502 counting only the distinct ones).

The product of its (nonzero) digits is 29400, while the sum is 35.

The square root of 100564775 is about 10028.1989908458. The cubic root of 100564775 is about 465.0310612465.

The spelling of 100564775 in words is "one hundred million, five hundred sixty-four thousand, seven hundred seventy-five".