100444156 has 6 divisors (see below), whose sum is σ = 175777280. Its totient is φ = 50222076.

The previous prime is 100444147. The next prime is 100444199. The reversal of 100444156 is 651444001.

It is a self number, because there is not a number n which added to its sum of digits gives 100444156.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12555516 + ... + 12555523.

Almost surely, 2^100444156 is an apocalyptic number.

It is an amenable number.

100444156 is a deficient number, since it is larger than the sum of its proper divisors (75333124).

100444156 is a wasteful number, since it uses less digits than its factorization.

100444156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25111043 (or 25111041 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 100444156 is about 10022.1831952923. The cubic root of 100444156 is about 464.8450649662.

Adding to 100444156 its reverse (651444001), we get a palindrome (751888157).

The spelling of 100444156 in words is "one hundred million, four hundred forty-four thousand, one hundred fifty-six".