100353961 has 4 divisors (see below), whose sum is σ = 100530900. Its totient is φ = 100177024.

The previous prime is 100353923. The next prime is 100353971. The reversal of 100353961 is 169353001.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6864400 + 93489561 = 2620^2 + 9669^2 .

It is a cyclic number.

It is not a de Polignac number, because 100353961 - 2¹¹ = 100351913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100353901) 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, 87616 + ... + 88753.

It is an arithmetic number, because the mean of its divisors is an integer number (25132725).

Almost surely, 2^100353961 is an apocalyptic number.

It is an amenable number.

100353961 is a deficient number, since it is larger than the sum of its proper divisors (176939).

100353961 is an equidigital number, since it uses as much as digits as its factorization.

100353961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176938.

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 100353961 is about 10017.6824166071. The cubic root of 100353961 is about 464.7058856182.

It can be divided in two parts, 100 and 353961, that added together give a triangular number (354061 = T₈₄₁).

The spelling of 100353961 in words is "one hundred million, three hundred fifty-three thousand, nine hundred sixty-one".