161041401 has 24 divisors (see below), whose sum is σ = 240589440. Its totient is φ = 103742496.

The previous prime is 161041351. The next prime is 161041417. The reversal of 161041401 is 104140161.

It is not a de Polignac number, because 161041401 - 2¹⁴ = 161025017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (161041451) 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, 29440 + ... + 34478.

It is an arithmetic number, because the mean of its divisors is an integer number (10024560).

Almost surely, 2^161041401 is an apocalyptic number.

It is an amenable number.

161041401 is a deficient number, since it is larger than the sum of its proper divisors (79548039).

161041401 is a wasteful number, since it uses less digits than its factorization.

161041401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5165 (or 5162 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 161041401 is about 12690.2088635294. The cubic root of 161041401 is about 544.0588092870.

Adding to 161041401 its reverse (104140161), we get a palindrome (265181562).

The spelling of 161041401 in words is "one hundred sixty-one million, forty-one thousand, four hundred one".