43401161 has 8 divisors (see below), whose sum is σ = 45418560. Its totient is φ = 41394672.

The previous prime is 43401151. The next prime is 43401179. The reversal of 43401161 is 16110434.

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-43401161 is a prime.

It is a super-2 number, since 2×43401161² = 3767321552295842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43401101) 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, 6050 + ... + 11108.

It is an arithmetic number, because the mean of its divisors is an integer number (5677320).

Almost surely, 2^43401161 is an apocalyptic number.

It is an amenable number.

43401161 is a deficient number, since it is larger than the sum of its proper divisors (2017399).

43401161 is a wasteful number, since it uses less digits than its factorization.

43401161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5455.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 43401161 is about 6587.9557527354. The cubic root of 43401161 is about 351.4259134967.

Adding to 43401161 its reverse (16110434), we get a palindrome (59511595).

The spelling of 43401161 in words is "forty-three million, four hundred one thousand, one hundred sixty-one".