161641341 has 24 divisors (see below), whose sum is σ = 246280320. Its totient is φ = 101877696.

The previous prime is 161641313. The next prime is 161641387. The reversal of 161641341 is 143146161.

161641341 is a `hidden beast` number, since 1 + 616 + 4 + 1 + 3 + 41 = 666.

It is not a de Polignac number, because 161641341 - 2⁷ = 161641213 is a prime.

It is a super-2 number, since 2×161641341² = 52255846240556562, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161641301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145996 + ... + 147098.

It is an arithmetic number, because the mean of its divisors is an integer number (10261680).

Almost surely, 2^161641341 is an apocalyptic number.

It is an amenable number.

161641341 is a deficient number, since it is larger than the sum of its proper divisors (84638979).

161641341 is a wasteful number, since it uses less digits than its factorization.

161641341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1985 (or 1982 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 161641341 is about 12713.8247982265. The cubic root of 161641341 is about 544.7335801895.

The spelling of 161641341 in words is "one hundred sixty-one million, six hundred forty-one thousand, three hundred forty-one".