43268121 has 32 divisors (see below), whose sum is σ = 69632640. Its totient is φ = 26395200.

The previous prime is 43268119. The next prime is 43268123. The reversal of 43268121 is 12186234.

It is an interprime number because it is at equal distance from previous prime (43268119) and next prime (43268123).

It is not a de Polignac number, because 43268121 - 2¹ = 43268119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43268123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45511 + ... + 46451.

It is an arithmetic number, because the mean of its divisors is an integer number (2176020).

Almost surely, 2^43268121 is an apocalyptic number.

It is an amenable number.

43268121 is a deficient number, since it is larger than the sum of its proper divisors (26364519).

43268121 is a wasteful number, since it uses less digits than its factorization.

43268121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094 (or 1088 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 43268121 is about 6577.8507888215. The cubic root of 43268121 is about 351.0664641469.

The spelling of 43268121 in words is "forty-three million, two hundred sixty-eight thousand, one hundred twenty-one".