43123151 has 2 divisors, whose sum is σ = 43123152. Its totient is φ = 43123150.

The previous prime is 43123147. The next prime is 43123153. The reversal of 43123151 is 15132134.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43123151 - 2² = 43123147 is a prime.

Together with 43123153, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43123153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21561575 + 21561576.

It is an arithmetic number, because the mean of its divisors is an integer number (21561576).

Almost surely, 2^43123151 is an apocalyptic number.

43123151 is a deficient number, since it is larger than the sum of its proper divisors (1).

43123151 is an equidigital number, since it uses as much as digits as its factorization.

43123151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 20.

The square root of 43123151 is about 6566.8219863188. The cubic root of 43123151 is about 350.6739422743.

Adding to 43123151 its reverse (15132134), we get a palindrome (58255285).

The spelling of 43123151 in words is "forty-three million, one hundred twenty-three thousand, one hundred fifty-one".