34505143 has 2 divisors, whose sum is σ = 34505144. Its totient is φ = 34505142.

The previous prime is 34505137. The next prime is 34505153. The reversal of 34505143 is 34150543.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34505143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34505113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17252571 + 17252572.

It is an arithmetic number, because the mean of its divisors is an integer number (17252572).

Almost surely, 2^34505143 is an apocalyptic number.

34505143 is a deficient number, since it is larger than the sum of its proper divisors (1).

34505143 is an equidigital number, since it uses as much as digits as its factorization.

34505143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 34505143 is about 5874.1078471543. The cubic root of 34505143 is about 325.5576791972.

Adding to 34505143 its reverse (34150543), we get a palindrome (68655686).

The spelling of 34505143 in words is "thirty-four million, five hundred five thousand, one hundred forty-three".