161040410 has 8 divisors (see below), whose sum is σ = 289872756. Its totient is φ = 64416160.

The previous prime is 161040403. The next prime is 161040419. The reversal of 161040410 is 14040161.

It can be written as a sum of positive squares in 2 ways, for example, as 158180929 + 2859481 = 12577^2 + 1691^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (161040419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8052011 + ... + 8052030.

Almost surely, 2^161040410 is an apocalyptic number.

161040410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161040410 is a deficient number, since it is larger than the sum of its proper divisors (128832346).

161040410 is a wasteful number, since it uses less digits than its factorization.

161040410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16104048.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 161040410 is about 12690.1698176187. The cubic root of 161040410 is about 544.0576932937.

Adding to 161040410 its reverse (14040161), we get a palindrome (175080571).

The spelling of 161040410 in words is "one hundred sixty-one million, forty thousand, four hundred ten".