161453097317 has 4 divisors (see below), whose sum is σ = 161461418976. Its totient is φ = 161444775660.

The previous prime is 161453097293. The next prime is 161453097319. The reversal of 161453097317 is 713790354161.

161453097317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 713790354161 = 73 ⋅9777950057.

It is a cyclic number.

It is not a de Polignac number, because 161453097317 - 2⁸ = 161453097061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161453097319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4131659 + ... + 4170552.

It is an arithmetic number, because the mean of its divisors is an integer number (40365354744).

Almost surely, 2^161453097317 is an apocalyptic number.

It is an amenable number.

161453097317 is a deficient number, since it is larger than the sum of its proper divisors (8321659).

161453097317 is an equidigital number, since it uses as much as digits as its factorization.

161453097317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8321658.

The product of its (nonzero) digits is 476280, while the sum is 47.

The spelling of 161453097317 in words is "one hundred sixty-one billion, four hundred fifty-three million, ninety-seven thousand, three hundred seventeen".