94742581 has 6 divisors (see below), whose sum is σ = 100643810. Its totient is φ = 89169216.

The previous prime is 94742561. The next prime is 94742597. The reversal of 94742581 is 18524749.

It can be written as a sum of positive squares in 3 ways, for example, as 19660356 + 75082225 = 4434^2 + 8665^2 .

It is not a de Polignac number, because 94742581 - 2¹³ = 94734389 is a prime.

It is a super-2 number, since 2×94742581² = 17952313309083122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (94742561) 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 in 5 ways as a sum of consecutive naturals, for example, 163626 + ... + 164203.

Almost surely, 2^94742581 is an apocalyptic number.

It is an amenable number.

94742581 is a deficient number, since it is larger than the sum of its proper divisors (5901229).

94742581 is a wasteful number, since it uses less digits than its factorization.

94742581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327863 (or 327846 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 94742581 is about 9733.5800710735. The cubic root of 94742581 is about 455.8777581559.

The spelling of 94742581 in words is "ninety-four million, seven hundred forty-two thousand, five hundred eighty-one".