97131340 has 12 divisors (see below), whose sum is σ = 203975856. Its totient is φ = 38852528.

The previous prime is 97131311. The next prime is 97131341. The reversal of 97131340 is 4313179.

It is a junction number, because it is equal to n+sod(n) for n = 97131299 and 97131308.

It is not an unprimeable number, because it can be changed into a prime (97131341) 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, 2428264 + ... + 2428303.

It is an arithmetic number, because the mean of its divisors is an integer number (16997988).

Almost surely, 2^97131340 is an apocalyptic number.

It is an amenable number.

97131340 is an abundant number, since it is smaller than the sum of its proper divisors (106844516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97131340 is a wasteful number, since it uses less digits than its factorization.

97131340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4856576 (or 4856574 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 97131340 is about 9855.5233245120. The cubic root of 97131340 is about 459.6773730181.

The spelling of 97131340 in words is "ninety-seven million, one hundred thirty-one thousand, three hundred forty".