34143257 has 2 divisors, whose sum is σ = 34143258. Its totient is φ = 34143256.

The previous prime is 34143253. The next prime is 34143271. The reversal of 34143257 is 75234143.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25593481 + 8549776 = 5059^2 + 2924^2 .

It is an emirp because it is prime and its reverse (75234143) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34143257 - 2² = 34143253 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (34143251) 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, 17071628 + 17071629.

It is an arithmetic number, because the mean of its divisors is an integer number (17071629).

Almost surely, 2^34143257 is an apocalyptic number.

It is an amenable number.

34143257 is a deficient number, since it is larger than the sum of its proper divisors (1).

34143257 is an equidigital number, since it uses as much as digits as its factorization.

34143257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 29.

The square root of 34143257 is about 5843.2231687657. The cubic root of 34143257 is about 324.4155397102.

The spelling of 34143257 in words is "thirty-four million, one hundred forty-three thousand, two hundred fifty-seven".