100681156 has 27 divisors (see below), whose sum is σ = 183537991. Its totient is φ = 48323744.

The previous prime is 100681153. The next prime is 100681183. The reversal of 100681156 is 651186001.

The square root of 100681156 is 10034.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 23522500 + 77158656 = 4850^2 + 8784^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100681151) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 581886 + ... + 582058.

Almost surely, 2^100681156 is an apocalyptic number.

100681156 is the 10034-th square number.

It is an amenable number.

100681156 is a deficient number, since it is larger than the sum of its proper divisors (82856835).

100681156 is an equidigital number, since it uses as much as digits as its factorization.

100681156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The cubic root of 100681156 is about 465.2103815431.

The spelling of 100681156 in words is "one hundred million, six hundred eighty-one thousand, one hundred fifty-six".