161441335 has 16 divisors (see below), whose sum is σ = 218161152. Its totient is φ = 113623200.

The previous prime is 161441327. The next prime is 161441341. The reversal of 161441335 is 533144161.

It is not a de Polignac number, because 161441335 - 2³ = 161441327 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45639 + ... + 49048.

It is an arithmetic number, because the mean of its divisors is an integer number (13635072).

Almost surely, 2^161441335 is an apocalyptic number.

161441335 is a deficient number, since it is larger than the sum of its proper divisors (56719817).

161441335 is a wasteful number, since it uses less digits than its factorization.

161441335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94734.

The product of its digits is 4320, while the sum is 28.

The square root of 161441335 is about 12705.9566739384. The cubic root of 161441335 is about 544.5088131201.

Adding to 161441335 its reverse (533144161), we get a palindrome (694585496).

The spelling of 161441335 in words is "one hundred sixty-one million, four hundred forty-one thousand, three hundred thirty-five".