99975461 has 2 divisors, whose sum is σ = 99975462. Its totient is φ = 99975460.

The previous prime is 99975451. The next prime is 99975467. The reversal of 99975461 is 16457999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51394561 + 48580900 = 7169^2 + 6970^2 .

It is an emirp because it is prime and its reverse (16457999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99975461 - 2¹⁰ = 99974437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99975467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49987730 + 49987731.

It is an arithmetic number, because the mean of its divisors is an integer number (49987731).

Almost surely, 2^99975461 is an apocalyptic number.

It is an amenable number.

99975461 is a deficient number, since it is larger than the sum of its proper divisors (1).

99975461 is an equidigital number, since it uses as much as digits as its factorization.

99975461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 612360, while the sum is 50.

The square root of 99975461 is about 9998.7729747204. The cubic root of 99975461 is about 464.1209136058.

The spelling of 99975461 in words is "ninety-nine million, nine hundred seventy-five thousand, four hundred sixty-one".