161140034 has 32 divisors (see below), whose sum is σ = 271257984. Its totient is φ = 71169280.

The previous prime is 161140027. The next prime is 161140043. The reversal of 161140034 is 430041161.

It is a super-2 number, since 2×161140034² = 51932221115042312, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 161139988 and 161140015.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 131147 + ... + 132369.

It is an arithmetic number, because the mean of its divisors is an integer number (8476812).

Almost surely, 2^161140034 is an apocalyptic number.

161140034 is a deficient number, since it is larger than the sum of its proper divisors (110117950).

161140034 is a wasteful number, since it uses less digits than its factorization.

161140034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 161140034 is about 12694.0944537214. The cubic root of 161140034 is about 544.1698598211.

Adding to 161140034 its reverse (430041161), we get a palindrome (591181195).

The spelling of 161140034 in words is "one hundred sixty-one million, one hundred forty thousand, thirty-four".