100445437 has 2 divisors, whose sum is σ = 100445438. Its totient is φ = 100445436.

The previous prime is 100445399. The next prime is 100445459. The reversal of 100445437 is 734544001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93586276 + 6859161 = 9674^2 + 2619^2 .

It is an emirp because it is prime and its reverse (734544001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100445437 - 2⁷ = 100445309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100445237) 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, 50222718 + 50222719.

It is an arithmetic number, because the mean of its divisors is an integer number (50222719).

Almost surely, 2^100445437 is an apocalyptic number.

It is an amenable number.

100445437 is a deficient number, since it is larger than the sum of its proper divisors (1).

100445437 is an equidigital number, since it uses as much as digits as its factorization.

100445437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 100445437 is about 10022.2471033197. The cubic root of 100445437 is about 464.8470410692.

Adding to 100445437 its reverse (734544001), we get a palindrome (834989438).

The spelling of 100445437 in words is "one hundred million, four hundred forty-five thousand, four hundred thirty-seven".