100661244 has 24 divisors (see below), whose sum is σ = 238186368. Its totient is φ = 33080880.

The previous prime is 100661227. The next prime is 100661251. The reversal of 100661244 is 442166001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58222 + ... + 59925.

It is an arithmetic number, because the mean of its divisors is an integer number (9924432).

Almost surely, 2^100661244 is an apocalyptic number.

It is an amenable number.

100661244 is an abundant number, since it is smaller than the sum of its proper divisors (137525124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100661244 is a wasteful number, since it uses less digits than its factorization.

100661244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118225 (or 118223 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 100661244 is about 10033.0077245061. The cubic root of 100661244 is about 465.1797108587.

The spelling of 100661244 in words is "one hundred million, six hundred sixty-one thousand, two hundred forty-four".