100270261 has 8 divisors (see below), whose sum is σ = 123409664. Its totient is φ = 79334640.

The previous prime is 100270253. The next prime is 100270273. The reversal of 100270261 is 162072001.

100270261 = 126² + 127² + ... + 671².

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100270261 - 2³ = 100270253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100270241) 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, 550845 + ... + 551026.

It is an arithmetic number, because the mean of its divisors is an integer number (15426208).

Almost surely, 2^100270261 is an apocalyptic number.

It is an amenable number.

100270261 is a deficient number, since it is larger than the sum of its proper divisors (23139403).

100270261 is a wasteful number, since it uses less digits than its factorization.

100270261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101891.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 100270261 is about 10013.5039321908. The cubic root of 100270261 is about 464.5766540432.

The spelling of 100270261 in words is "one hundred million, two hundred seventy thousand, two hundred sixty-one".