43402159 has 2 divisors, whose sum is σ = 43402160. Its totient is φ = 43402158.

The previous prime is 43402157. The next prime is 43402181. The reversal of 43402159 is 95120434.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43402159 - 2¹ = 43402157 is a prime.

It is a super-2 number, since 2×43402159² = 3767494811722562, which contains 22 as substring.

Together with 43402157, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43402157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21701079 + 21701080.

It is an arithmetic number, because the mean of its divisors is an integer number (21701080).

Almost surely, 2^43402159 is an apocalyptic number.

43402159 is a deficient number, since it is larger than the sum of its proper divisors (1).

43402159 is an equidigital number, since it uses as much as digits as its factorization.

43402159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 43402159 is about 6588.0314965853. The cubic root of 43402159 is about 351.4286071295.

The spelling of 43402159 in words is "forty-three million, four hundred two thousand, one hundred fifty-nine".