100001651 has 2 divisors, whose sum is σ = 100001652. Its totient is φ = 100001650.

The previous prime is 100001623. The next prime is 100001653. The reversal of 100001651 is 156100001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100001651 - 2¹⁰ = 100000627 is a prime.

It is a Sophie Germain prime.

Together with 100001653, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (100001653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50000825 + 50000826.

It is an arithmetic number, because the mean of its divisors is an integer number (50000826).

Almost surely, 2^100001651 is an apocalyptic number.

100001651 is a deficient number, since it is larger than the sum of its proper divisors (1).

100001651 is an equidigital number, since it uses as much as digits as its factorization.

100001651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 100001651 is about 10000.0825496593. The cubic root of 100001651 is about 464.1614377683.

Adding to 100001651 its reverse (156100001), we get a palindrome (256101652).

The spelling of 100001651 in words is "one hundred million, one thousand, six hundred fifty-one".