94160581 has 2 divisors, whose sum is σ = 94160582. Its totient is φ = 94160580.

The previous prime is 94160579. The next prime is 94160611. The reversal of 94160581 is 18506149.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80838081 + 13322500 = 8991^2 + 3650^2 .

It is a cyclic number.

It is not a de Polignac number, because 94160581 - 2¹ = 94160579 is a prime.

It is a super-2 number, since 2×94160581² = 17732430028515122, which contains 22 as substring.

Together with 94160579, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94160081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47080290 + 47080291.

It is an arithmetic number, because the mean of its divisors is an integer number (47080291).

Almost surely, 2^94160581 is an apocalyptic number.

It is an amenable number.

94160581 is a deficient number, since it is larger than the sum of its proper divisors (1).

94160581 is an equidigital number, since it uses as much as digits as its factorization.

94160581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 94160581 is about 9703.6375138398. The cubic root of 94160581 is about 454.9423603675.

The spelling of 94160581 in words is "ninety-four million, one hundred sixty thousand, five hundred eighty-one".