100436564 has 6 divisors (see below), whose sum is σ = 175763994. Its totient is φ = 50218280.

The previous prime is 100436563. The next prime is 100436573. The reversal of 100436564 is 465634001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 61748164 + 38688400 = 7858^2 + 6220^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100436563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12554567 + ... + 12554574.

It is an arithmetic number, because the mean of its divisors is an integer number (29293999).

Almost surely, 2^100436564 is an apocalyptic number.

It is an amenable number.

100436564 is a deficient number, since it is larger than the sum of its proper divisors (75327430).

100436564 is a wasteful number, since it uses less digits than its factorization.

100436564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25109145 (or 25109143 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 100436564 is about 10021.8044283452. The cubic root of 100436564 is about 464.8333530100.

The spelling of 100436564 in words is "one hundred million, four hundred thirty-six thousand, five hundred sixty-four".