97531361 has 4 divisors (see below), whose sum is σ = 97551300. Its totient is φ = 97511424.

The previous prime is 97531337. The next prime is 97531403. The reversal of 97531361 is 16313579.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16313579 = 79 ⋅206501.

It can be written as a sum of positive squares in 2 ways, for example, as 28558336 + 68973025 = 5344^2 + 8305^2 .

It is a cyclic number.

It is not a de Polignac number, because 97531361 - 2¹⁰ = 97530337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97531961) 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 3 ways as a sum of consecutive naturals, for example, 2945 + ... + 14273.

It is an arithmetic number, because the mean of its divisors is an integer number (24387825).

Almost surely, 2^97531361 is an apocalyptic number.

It is an amenable number.

97531361 is a deficient number, since it is larger than the sum of its proper divisors (19939).

97531361 is a wasteful number, since it uses less digits than its factorization.

97531361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19938.

The product of its digits is 17010, while the sum is 35.

The square root of 97531361 is about 9875.7967273532. The cubic root of 97531361 is about 460.3075463830.

The spelling of 97531361 in words is "ninety-seven million, five hundred thirty-one thousand, three hundred sixty-one".