100000100549 has 2 divisors, whose sum is σ = 100000100550. Its totient is φ = 100000100548.

The previous prime is 100000100537. The next prime is 100000100567. The reversal of 100000100549 is 945001000001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64817595649 + 35182504900 = 254593^2 + 187570^2 .

It is a cyclic number.

It is not a de Polignac number, because 100000100549 - 2³⁶ = 31280623813 is a prime.

It is a super-2 number, since 2×100000100549² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100000100549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100000100509) 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, 50000050274 + 50000050275.

It is an arithmetic number, because the mean of its divisors is an integer number (50000050275).

Almost surely, 2^100000100549 is an apocalyptic number.

It is an amenable number.

100000100549 is a deficient number, since it is larger than the sum of its proper divisors (1).

100000100549 is an equidigital number, since it uses as much as digits as its factorization.

100000100549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 20.

The spelling of 100000100549 in words is "one hundred billion, one hundred thousand, five hundred forty-nine".