161334435 has 16 divisors (see below), whose sum is σ = 258328224. Its totient is φ = 85980672.

The previous prime is 161334431. The next prime is 161334461. The reversal of 161334435 is 534433161.

161334435 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 161334435 - 2² = 161334431 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161334431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22219 + ... + 28571.

It is an arithmetic number, because the mean of its divisors is an integer number (16145514).

Almost surely, 2^161334435 is an apocalyptic number.

161334435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

161334435 is a deficient number, since it is larger than the sum of its proper divisors (96993789).

161334435 is a wasteful number, since it uses less digits than its factorization.

161334435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8054.

The product of its digits is 12960, while the sum is 30.

The square root of 161334435 is about 12701.7492889759. The cubic root of 161334435 is about 544.3886025917.

Adding to 161334435 its reverse (534433161), we get a palindrome (695767596).

The spelling of 161334435 in words is "one hundred sixty-one million, three hundred thirty-four thousand, four hundred thirty-five".