100561793 has 2 divisors, whose sum is σ = 100561794. Its totient is φ = 100561792.

The previous prime is 100561789. The next prime is 100561801. The reversal of 100561793 is 397165001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93470224 + 7091569 = 9668^2 + 2663^2 .

It is an emirp because it is prime and its reverse (397165001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100561793 - 2² = 100561789 is a prime.

It is a super-2 number, since 2×100561793² = 20225348422749698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100561093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50280896 + 50280897.

It is an arithmetic number, because the mean of its divisors is an integer number (50280897).

Almost surely, 2^100561793 is an apocalyptic number.

It is an amenable number.

100561793 is a deficient number, since it is larger than the sum of its proper divisors (1).

100561793 is an equidigital number, since it uses as much as digits as its factorization.

100561793 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 100561793 is about 10028.0503090082. The cubic root of 100561793 is about 465.0264647519.

The spelling of 100561793 in words is "one hundred million, five hundred sixty-one thousand, seven hundred ninety-three".