100531066 has 8 divisors (see below), whose sum is σ = 150886260. Its totient is φ = 50235648.

The previous prime is 100531051. The next prime is 100531069. The reversal of 100531066 is 660135001.

It can be written as a sum of positive squares in 2 ways, for example, as 99580441 + 950625 = 9979^2 + 975^2 .

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

It is not an unprimeable number, because it can be changed into a prime (100531069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10471 + ... + 17626.

Almost surely, 2^100531066 is an apocalyptic number.

100531066 is a deficient number, since it is larger than the sum of its proper divisors (50355194).

100531066 is a wasteful number, since it uses less digits than its factorization.

100531066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29888.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 100531066 is about 10026.5181394141. The cubic root of 100531066 is about 464.9790964512.

Adding to 100531066 its reverse (660135001), we get a palindrome (760666067).

It can be divided in two parts, 10053106 and 6, that multiplied together give a triangular number (60318636 = T₁₀₉₈₃).

The spelling of 100531066 in words is "one hundred million, five hundred thirty-one thousand, sixty-six".