100181672 has 16 divisors (see below), whose sum is σ = 187960500. Its totient is φ = 50058880.

The previous prime is 100181671. The next prime is 100181723. The reversal of 100181672 is 276181001.

It can be written as a sum of positive squares in 2 ways, for example, as 96157636 + 4024036 = 9806^2 + 2006^2 .

It is not an unprimeable number, because it can be changed into a prime (100181671) 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, 14204 + ... + 20052.

Almost surely, 2^100181672 is an apocalyptic number.

It is an amenable number.

100181672 is a deficient number, since it is larger than the sum of its proper divisors (87778828).

100181672 is a wasteful number, since it uses less digits than its factorization.

100181672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7996 (or 7992 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 100181672 is about 10009.0794781538. The cubic root of 100181672 is about 464.4397955592.

The spelling of 100181672 in words is "one hundred million, one hundred eighty-one thousand, six hundred seventy-two".