97545913 has 4 divisors (see below), whose sum is σ = 97565668. Its totient is φ = 97526160.

The previous prime is 97545907. The next prime is 97545919. The reversal of 97545913 is 31954579.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (97545907) and next prime (97545919).

It can be written as a sum of positive squares in 2 ways, for example, as 25431849 + 72114064 = 5043^2 + 8492^2 .

It is a cyclic number.

It is not a de Polignac number, because 97545913 - 2⁹ = 97545401 is a prime.

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 97545913.

It is not an unprimeable number, because it can be changed into a prime (97545919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4795 + ... + 14767.

It is an arithmetic number, because the mean of its divisors is an integer number (24391417).

Almost surely, 2^97545913 is an apocalyptic number.

It is an amenable number.

97545913 is a deficient number, since it is larger than the sum of its proper divisors (19755).

97545913 is an equidigital number, since it uses as much as digits as its factorization.

97545913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19754.

The product of its digits is 170100, while the sum is 43.

The square root of 97545913 is about 9876.5334505584. The cubic root of 97545913 is about 460.3304383780.

The spelling of 97545913 in words is "ninety-seven million, five hundred forty-five thousand, nine hundred thirteen".