97144469 has 2 divisors, whose sum is σ = 97144470. Its totient is φ = 97144468.

The previous prime is 97144447. The next prime is 97144471. The reversal of 97144469 is 96444179.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64802500 + 32341969 = 8050^2 + 5687^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97144469 is a prime.

It is a super-2 number, since 2×97144469² = 18874095714583922, which contains 22 as substring.

Together with 97144471, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97144429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48572234 + 48572235.

It is an arithmetic number, because the mean of its divisors is an integer number (48572235).

Almost surely, 2^97144469 is an apocalyptic number.

It is an amenable number.

97144469 is a deficient number, since it is larger than the sum of its proper divisors (1).

97144469 is an equidigital number, since it uses as much as digits as its factorization.

97144469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 44.

The square root of 97144469 is about 9856.1893752099. The cubic root of 97144469 is about 459.6980832315.

The spelling of 97144469 in words is "ninety-seven million, one hundred forty-four thousand, four hundred sixty-nine".