161067829 has 4 divisors (see below), whose sum is σ = 173457676. Its totient is φ = 148677984.

The previous prime is 161067757. The next prime is 161067871. The reversal of 161067829 is 928760161.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 87142225 + 73925604 = 9335^2 + 8598^2 .

It is not a de Polignac number, because 161067829 - 2⁷ = 161067701 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161067791 and 161067800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161067889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6194904 + ... + 6194929.

It is an arithmetic number, because the mean of its divisors is an integer number (43364419).

Almost surely, 2^161067829 is an apocalyptic number.

It is an amenable number.

161067829 is a deficient number, since it is larger than the sum of its proper divisors (12389847).

161067829 is a wasteful number, since it uses less digits than its factorization.

161067829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12389846.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 161067829 is about 12691.2500960307. The cubic root of 161067829 is about 544.0885689216.

The spelling of 161067829 in words is "one hundred sixty-one million, sixty-seven thousand, eight hundred twenty-nine".