97145023 has 2 divisors, whose sum is σ = 97145024. Its totient is φ = 97145022.

The previous prime is 97145003. The next prime is 97145047. The reversal of 97145023 is 32054179.

It is a weak prime.

It is an emirp because it is prime and its reverse (32054179) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97145023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97145003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48572511 + 48572512.

It is an arithmetic number, because the mean of its divisors is an integer number (48572512).

Almost surely, 2^97145023 is an apocalyptic number.

97145023 is a deficient number, since it is larger than the sum of its proper divisors (1).

97145023 is an equidigital number, since it uses as much as digits as its factorization.

97145023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 97145023 is about 9856.2174793376. The cubic root of 97145023 is about 459.6989570924.

The spelling of 97145023 in words is "ninety-seven million, one hundred forty-five thousand, twenty-three".