100122087 has 8 divisors (see below), whose sum is σ = 143765104. Its totient is φ = 61613568.

The previous prime is 100122067. The next prime is 100122089. The reversal of 100122087 is 780221001.

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

It is not a de Polignac number, because 100122087 - 2⁶ = 100122023 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 (100122089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1283578 + ... + 1283655.

It is an arithmetic number, because the mean of its divisors is an integer number (17970638).

Almost surely, 2^100122087 is an apocalyptic number.

100122087 is a deficient number, since it is larger than the sum of its proper divisors (43643017).

100122087 is a wasteful number, since it uses less digits than its factorization.

100122087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2567249.

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 100122087 is about 10006.1024879820. The cubic root of 100122087 is about 464.3476990943.

Adding to 100122087 its reverse (780221001), we get a palindrome (880343088).

The spelling of 100122087 in words is "one hundred million, one hundred twenty-two thousand, eighty-seven".