97545919 has 2 divisors, whose sum is σ = 97545920. Its totient is φ = 97545918.

The previous prime is 97545907. The next prime is 97545923. The reversal of 97545919 is 91954579.

It is a strong prime.

It is an emirp because it is prime and its reverse (91954579) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97545919 - 2⁹ = 97545407 is a prime.

It is a super-2 number, since 2×97545919² = 19030412627109122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97545619) 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 as a sum of consecutive naturals, namely, 48772959 + 48772960.

It is an arithmetic number, because the mean of its divisors is an integer number (48772960).

Almost surely, 2^97545919 is an apocalyptic number.

97545919 is a deficient number, since it is larger than the sum of its proper divisors (1).

97545919 is an equidigital number, since it uses as much as digits as its factorization.

97545919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 510300, while the sum is 49.

The square root of 97545919 is about 9876.5337543087. The cubic root of 97545919 is about 460.3304478163.

The spelling of 97545919 in words is "ninety-seven million, five hundred forty-five thousand, nine hundred nineteen".