34145729 has 8 divisors (see below), whose sum is σ = 34526592. Its totient is φ = 33767280.

The previous prime is 34145723. The next prime is 34145759. The reversal of 34145729 is 92754143.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34145729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (34145723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43787 + ... + 44559.

It is an arithmetic number, because the mean of its divisors is an integer number (4315824).

Almost surely, 2^34145729 is an apocalyptic number.

It is an amenable number.

34145729 is a deficient number, since it is larger than the sum of its proper divisors (380863).

34145729 is a wasteful number, since it uses less digits than its factorization.

34145729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207.

The product of its digits is 30240, while the sum is 35.

The square root of 34145729 is about 5843.4346920283. The cubic root of 34145729 is about 324.4233688389.

The spelling of 34145729 in words is "thirty-four million, one hundred forty-five thousand, seven hundred twenty-nine".