100271550 has 96 divisors (see below), whose sum is σ = 264625920. Its totient is φ = 25056000.

The previous prime is 100271497. The next prime is 100271557. The reversal of 100271550 is 55172001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100271557) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 430234 + ... + 430466.

It is an arithmetic number, because the mean of its divisors is an integer number (2756520).

Almost surely, 2^100271550 is an apocalyptic number.

100271550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 100271550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132312960).

100271550 is an abundant number, since it is smaller than the sum of its proper divisors (164354370).

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

100271550 is a wasteful number, since it uses less digits than its factorization.

100271550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418 (or 413 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 100271550 is about 10013.5682950684. The cubic root of 100271550 is about 464.5786447855.

The spelling of 100271550 in words is "one hundred million, two hundred seventy-one thousand, five hundred fifty".