94190561 has 2 divisors, whose sum is σ = 94190562. Its totient is φ = 94190560.

The previous prime is 94190549. The next prime is 94190587. The reversal of 94190561 is 16509149.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91107025 + 3083536 = 9545^2 + 1756^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-94190561 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (94190531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47095280 + 47095281.

It is an arithmetic number, because the mean of its divisors is an integer number (47095281).

Almost surely, 2^94190561 is an apocalyptic number.

It is an amenable number.

94190561 is a deficient number, since it is larger than the sum of its proper divisors (1).

94190561 is an equidigital number, since it uses as much as digits as its factorization.

94190561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 94190561 is about 9705.1821724273. The cubic root of 94190561 is about 454.9906386191.

The spelling of 94190561 in words is "ninety-four million, one hundred ninety thousand, five hundred sixty-one".