100172148 has 24 divisors (see below), whose sum is σ = 241795680. Its totient is φ = 32239200.

The previous prime is 100172141. The next prime is 100172183. The reversal of 100172148 is 841271001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100172141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143578 + ... + 144273.

It is an arithmetic number, because the mean of its divisors is an integer number (10074820).

Almost surely, 2^100172148 is an apocalyptic number.

It is an amenable number.

100172148 is an abundant number, since it is smaller than the sum of its proper divisors (141623532).

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

100172148 is a wasteful number, since it uses less digits than its factorization.

100172148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287887 (or 287885 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 24.

The square root of 100172148 is about 10008.6036988183. The cubic root of 100172148 is about 464.4250774153.

The spelling of 100172148 in words is "one hundred million, one hundred seventy-two thousand, one hundred forty-eight".