97241581 has 4 divisors (see below), whose sum is σ = 102961692. Its totient is φ = 91521472.

The previous prime is 97241567. The next prime is 97241593. The reversal of 97241581 is 18514279.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28185481 + 69056100 = 5309^2 + 8310^2 .

It is not a de Polignac number, because 97241581 - 2⁷ = 97241453 is a prime.

It is a super-2 number, since 2×97241581² = 18911850150759122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 97241581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97241281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2860030 + ... + 2860063.

It is an arithmetic number, because the mean of its divisors is an integer number (25740423).

Almost surely, 2^97241581 is an apocalyptic number.

It is an amenable number.

97241581 is a deficient number, since it is larger than the sum of its proper divisors (5720111).

97241581 is a wasteful number, since it uses less digits than its factorization.

97241581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5720110.

The product of its digits is 20160, while the sum is 37.

The square root of 97241581 is about 9861.1145921747. The cubic root of 97241581 is about 459.8512136952.

The spelling of 97241581 in words is "ninety-seven million, two hundred forty-one thousand, five hundred eighty-one".