161093513 has 12 divisors (see below), whose sum is σ = 195576192. Its totient is φ = 129956160.

The previous prime is 161093509. The next prime is 161093519. The reversal of 161093513 is 315390161.

It is not a de Polignac number, because 161093513 - 2² = 161093509 is a prime.

It is a super-2 number, since 2×161093513² = 51902239861362338, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (161093519) 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 11 ways as a sum of consecutive naturals, for example, 37793 + ... + 41838.

It is an arithmetic number, because the mean of its divisors is an integer number (16298016).

Almost surely, 2^161093513 is an apocalyptic number.

It is an amenable number.

161093513 is a deficient number, since it is larger than the sum of its proper divisors (34482679).

161093513 is an equidigital number, since it uses as much as digits as its factorization.

161093513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79672 (or 79655 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 161093513 is about 12692.2619339501. The cubic root of 161093513 is about 544.1174876452.

The spelling of 161093513 in words is "one hundred sixty-one million, ninety-three thousand, five hundred thirteen".