97081345 has 4 divisors (see below), whose sum is σ = 116497620. Its totient is φ = 77665072.

The previous prime is 97081331. The next prime is 97081379. The reversal of 97081345 is 54318079.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54318079 = 109 ⋅498331.

It can be written as a sum of positive squares in 2 ways, for example, as 52765696 + 44315649 = 7264^2 + 6657^2 .

It is a cyclic number.

It is not a de Polignac number, because 97081345 - 2⁷ = 97081217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9708130 + ... + 9708139.

It is an arithmetic number, because the mean of its divisors is an integer number (29124405).

Almost surely, 2^97081345 is an apocalyptic number.

It is an amenable number.

97081345 is a deficient number, since it is larger than the sum of its proper divisors (19416275).

97081345 is a wasteful number, since it uses less digits than its factorization.

97081345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19416274.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 97081345 is about 9852.9866030559. The cubic root of 97081345 is about 459.5984918030.

The spelling of 97081345 in words is "ninety-seven million, eighty-one thousand, three hundred forty-five".