43169961 has 4 divisors (see below), whose sum is σ = 57559952. Its totient is φ = 28779972.

The previous prime is 43169921. The next prime is 43169963. The reversal of 43169961 is 16996134.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 43169961 - 2⁶ = 43169897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43169963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7194991 + ... + 7194996.

It is an arithmetic number, because the mean of its divisors is an integer number (14389988).

Almost surely, 2^43169961 is an apocalyptic number.

It is an amenable number.

43169961 is a deficient number, since it is larger than the sum of its proper divisors (14389991).

43169961 is a wasteful number, since it uses less digits than its factorization.

43169961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14389990.

The product of its digits is 34992, while the sum is 39.

The square root of 43169961 is about 6570.3851485282. The cubic root of 43169961 is about 350.8007814233.

The spelling of 43169961 in words is "forty-three million, one hundred sixty-nine thousand, nine hundred sixty-one".