161535067 has 4 divisors (see below), whose sum is σ = 161566920. Its totient is φ = 161503216.

The previous prime is 161535061. The next prime is 161535083. The reversal of 161535067 is 760535161.

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 161535067 - 2¹⁹ = 161010779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161535061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6433 + ... + 19090.

It is an arithmetic number, because the mean of its divisors is an integer number (40391730).

Almost surely, 2^161535067 is an apocalyptic number.

161535067 is a deficient number, since it is larger than the sum of its proper divisors (31853).

161535067 is an equidigital number, since it uses as much as digits as its factorization.

161535067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31852.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 161535067 is about 12709.6446449143. The cubic root of 161535067 is about 544.6141723946.

The spelling of 161535067 in words is "one hundred sixty-one million, five hundred thirty-five thousand, sixty-seven".