34157009 has 4 divisors (see below), whose sum is σ = 35258880. Its totient is φ = 33055140.

The previous prime is 34156987. The next prime is 34157021. The reversal of 34157009 is 90075143.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 34157009 - 2¹² = 34152913 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 (34157209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550889 + ... + 550950.

It is an arithmetic number, because the mean of its divisors is an integer number (8814720).

Almost surely, 2^34157009 is an apocalyptic number.

It is an amenable number.

34157009 is a deficient number, since it is larger than the sum of its proper divisors (1101871).

34157009 is a wasteful number, since it uses less digits than its factorization.

34157009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101870.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 34157009 is about 5844.3997980973. The cubic root of 34157009 is about 324.4590891941.

The spelling of 34157009 in words is "thirty-four million, one hundred fifty-seven thousand, nine".