161740411 has 8 divisors (see below), whose sum is σ = 184953600. Its totient is φ = 138554088.

The previous prime is 161740373. The next prime is 161740427. The reversal of 161740411 is 114047161.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161740411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161750411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8490 + ... + 19888.

It is an arithmetic number, because the mean of its divisors is an integer number (23119200).

Almost surely, 2^161740411 is an apocalyptic number.

161740411 is a deficient number, since it is larger than the sum of its proper divisors (23213189).

161740411 is a wasteful number, since it uses less digits than its factorization.

161740411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13433.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 161740411 is about 12717.7203538999. The cubic root of 161740411 is about 544.8448465562.

Adding to 161740411 its reverse (114047161), we get a palindrome (275787572).

The spelling of 161740411 in words is "one hundred sixty-one million, seven hundred forty thousand, four hundred eleven".