161468573 has 6 divisors (see below), whose sum is σ = 187830846. Its totient is φ = 138401592.

The previous prime is 161468557. The next prime is 161468597. The reversal of 161468573 is 375864161.

It can be written as a sum of positive squares in only one way, i.e., 148522969 + 12945604 = 12187^2 + 3598^2 .

It is not a de Polignac number, because 161468573 - 2⁴ = 161468557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 161468573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161468513) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1647590 + ... + 1647687.

It is an arithmetic number, because the mean of its divisors is an integer number (31305141).

Almost surely, 2^161468573 is an apocalyptic number.

It is an amenable number.

161468573 is a deficient number, since it is larger than the sum of its proper divisors (26362273).

161468573 is an equidigital number, since it uses as much as digits as its factorization.

161468573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3295291 (or 3295284 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 161468573 is about 12707.0284882029. The cubic root of 161468573 is about 544.5394341442.

The spelling of 161468573 in words is "one hundred sixty-one million, four hundred sixty-eight thousand, five hundred seventy-three".