100484561 has 2 divisors, whose sum is σ = 100484562. Its totient is φ = 100484560.

The previous prime is 100484537. The next prime is 100484617. The reversal of 100484561 is 165484001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92756161 + 7728400 = 9631^2 + 2780^2 .

It is a cyclic number.

It is not a de Polignac number, because 100484561 - 2⁶ = 100484497 is a prime.

It is not a weakly prime, because it can be changed into another prime (100480561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50242280 + 50242281.

It is an arithmetic number, because the mean of its divisors is an integer number (50242281).

Almost surely, 2^100484561 is an apocalyptic number.

It is an amenable number.

100484561 is a deficient number, since it is larger than the sum of its proper divisors (1).

100484561 is an equidigital number, since it uses as much as digits as its factorization.

100484561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 100484561 is about 10024.1987709742. The cubic root of 100484561 is about 464.9073866506.

The spelling of 100484561 in words is "one hundred million, four hundred eighty-four thousand, five hundred sixty-one".