100081237 has 4 divisors (see below), whose sum is σ = 103309696. Its totient is φ = 96852780.

The previous prime is 100081171. The next prime is 100081243. The reversal of 100081237 is 732180001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100081237 - 2¹⁵ = 100048469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100081277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1614183 + ... + 1614244.

It is an arithmetic number, because the mean of its divisors is an integer number (25827424).

Almost surely, 2^100081237 is an apocalyptic number.

It is an amenable number.

100081237 is a deficient number, since it is larger than the sum of its proper divisors (3228459).

100081237 is an equidigital number, since it uses as much as digits as its factorization.

100081237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3228458.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 100081237 is about 10004.0610254036. The cubic root of 100081237 is about 464.2845389252.

The spelling of 100081237 in words is "one hundred million, eighty-one thousand, two hundred thirty-seven".