100348621 has 2 divisors, whose sum is σ = 100348622. Its totient is φ = 100348620.

The previous prime is 100348601. The next prime is 100348649. The reversal of 100348621 is 126843001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53494596 + 46854025 = 7314^2 + 6845^2 .

It is a cyclic number.

It is not a de Polignac number, because 100348621 - 2⁹ = 100348109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100348601) 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 as a sum of consecutive naturals, namely, 50174310 + 50174311.

It is an arithmetic number, because the mean of its divisors is an integer number (50174311).

Almost surely, 2^100348621 is an apocalyptic number.

It is an amenable number.

100348621 is a deficient number, since it is larger than the sum of its proper divisors (1).

100348621 is an equidigital number, since it uses as much as digits as its factorization.

100348621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 100348621 is about 10017.4158843486. The cubic root of 100348621 is about 464.6976428828.

The spelling of 100348621 in words is "one hundred million, three hundred forty-eight thousand, six hundred twenty-one".