145684104497 has 2 divisors, whose sum is σ = 145684104498. Its totient is φ = 145684104496.

The previous prime is 145684104487. The next prime is 145684104551. The reversal of 145684104497 is 794401486541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86727894016 + 58956210481 = 294496^2 + 242809^2 .

It is a cyclic number.

It is not a de Polignac number, because 145684104497 - 2¹⁰ = 145684103473 is a prime.

It is not a weakly prime, because it can be changed into another prime (145684104407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72842052248 + 72842052249.

It is an arithmetic number, because the mean of its divisors is an integer number (72842052249).

Almost surely, 2^145684104497 is an apocalyptic number.

It is an amenable number.

145684104497 is a deficient number, since it is larger than the sum of its proper divisors (1).

145684104497 is an equidigital number, since it uses as much as digits as its factorization.

145684104497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3870720, while the sum is 53.

The spelling of 145684104497 in words is "one hundred forty-five billion, six hundred eighty-four million, one hundred four thousand, four hundred ninety-seven".