100444134 has 16 divisors (see below), whose sum is σ = 229586688. Its totient is φ = 28698312.

The previous prime is 100444133. The next prime is 100444147. The reversal of 100444134 is 431444001.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 100444134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100444133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1195722 + ... + 1195805.

It is an arithmetic number, because the mean of its divisors is an integer number (14349168).

Almost surely, 2^100444134 is an apocalyptic number.

100444134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

100444134 is an abundant number, since it is smaller than the sum of its proper divisors (129142554).

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

100444134 is a wasteful number, since it uses less digits than its factorization.

100444134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391539.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 100444134 is about 10022.1820977270. The cubic root of 100444134 is about 464.8450310283.

Adding to 100444134 its reverse (431444001), we get a palindrome (531888135).

The spelling of 100444134 in words is "one hundred million, four hundred forty-four thousand, one hundred thirty-four".