100999597 has 2 divisors, whose sum is σ = 100999598. Its totient is φ = 100999596.

The previous prime is 100999543. The next prime is 100999631. The reversal of 100999597 is 795999001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88566921 + 12432676 = 9411^2 + 3526^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100999597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100999597.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100999517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50499798 + 50499799.

It is an arithmetic number, because the mean of its divisors is an integer number (50499799).

Almost surely, 2^100999597 is an apocalyptic number.

It is an amenable number.

100999597 is a deficient number, since it is larger than the sum of its proper divisors (1).

100999597 is an equidigital number, since it uses as much as digits as its factorization.

100999597 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 229635, while the sum is 49.

The square root of 100999597 is about 10049.8555711015. The cubic root of 100999597 is about 465.7003313819.

The spelling of 100999597 in words is "one hundred million, nine hundred ninety-nine thousand, five hundred ninety-seven".