161162071 has 8 divisors (see below), whose sum is σ = 184604544. Its totient is φ = 137824440.

The previous prime is 161162051. The next prime is 161162083. The reversal of 161162071 is 170261161.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 161162071 - 2¹¹ = 161160023 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 (161162041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22885 + ... + 29086.

It is an arithmetic number, because the mean of its divisors is an integer number (23075568).

Almost surely, 2^161162071 is an apocalyptic number.

161162071 is a deficient number, since it is larger than the sum of its proper divisors (23442473).

161162071 is an equidigital number, since it uses as much as digits as its factorization.

161162071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52421.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 161162071 is about 12694.9624260964. The cubic root of 161162071 is about 544.1946650051.

The spelling of 161162071 in words is "one hundred sixty-one million, one hundred sixty-two thousand, seventy-one".