100116251 has 4 divisors (see below), whose sum is σ = 102246432. Its totient is φ = 97986072.

The previous prime is 100116239. The next prime is 100116253. The reversal of 100116251 is 152611001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100116251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100116253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1065020 + ... + 1065113.

It is an arithmetic number, because the mean of its divisors is an integer number (25561608).

Almost surely, 2^100116251 is an apocalyptic number.

100116251 is a deficient number, since it is larger than the sum of its proper divisors (2130181).

100116251 is an equidigital number, since it uses as much as digits as its factorization.

100116251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130180.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 100116251 is about 10005.8108616943. The cubic root of 100116251 is about 464.3386768232.

Adding to 100116251 its reverse (152611001), we get a palindrome (252727252).

The spelling of 100116251 in words is "one hundred million, one hundred sixteen thousand, two hundred fifty-one".