161467849 has 9 divisors (see below), whose sum is σ = 164404551. Its totient is φ = 158583360.

The previous prime is 161467841. The next prime is 161467861. The reversal of 161467849 is 948764161.

The square root of 161467849 is 12707.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 72505225 + 88962624 = 8515^2 + 9432^2 .

It is not a de Polignac number, because 161467849 - 2³ = 161467841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161467799 and 161467808.

It is not an unprimeable number, because it can be changed into a prime (161467841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1232514 + ... + 1232644.

Almost surely, 2^161467849 is an apocalyptic number.

161467849 is the 12707-th square number.

161467849 is the 6354-th centered octagonal number.

It is an amenable number.

161467849 is a deficient number, since it is larger than the sum of its proper divisors (2936702).

161467849 is an frugal number, since it uses more digits than its factorization.

161467849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456 (or 228 counting only the distinct ones).

The product of its digits is 290304, while the sum is 46.

The cubic root of 161467849 is about 544.5386202662.

The spelling of 161467849 in words is "one hundred sixty-one million, four hundred sixty-seven thousand, eight hundred forty-nine".