161160819 has 4 divisors (see below), whose sum is σ = 214881096. Its totient is φ = 107440544.

The previous prime is 161160787. The next prime is 161160821. The reversal of 161160819 is 918061161.

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

It is a cyclic number.

It is not a de Polignac number, because 161160819 - 2⁵ = 161160787 is a prime.

It is a super-2 number, since 2×161160819² = 51945619161501522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 161160819.

It is not an unprimeable number, because it can be changed into a prime (161160829) 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, 26860134 + ... + 26860139.

It is an arithmetic number, because the mean of its divisors is an integer number (53720274).

Almost surely, 2^161160819 is an apocalyptic number.

161160819 is a deficient number, since it is larger than the sum of its proper divisors (53720277).

161160819 is an equidigital number, since it uses as much as digits as its factorization.

161160819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53720276.

The product of its (nonzero) digits is 2592, while the sum is 33.

The square root of 161160819 is about 12694.9131151024. The cubic root of 161160819 is about 544.1932557954.

The spelling of 161160819 in words is "one hundred sixty-one million, one hundred sixty thousand, eight hundred nineteen".