34121505 has 32 divisors (see below), whose sum is σ = 59885568. Its totient is φ = 16452800.

The previous prime is 34121501. The next prime is 34121513. The reversal of 34121505 is 50512143.

It is not a de Polignac number, because 34121505 - 2² = 34121501 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (34121501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37000 + ... + 37910.

It is an arithmetic number, because the mean of its divisors is an integer number (1871424).

Almost surely, 2^34121505 is an apocalyptic number.

It is an amenable number.

34121505 is a deficient number, since it is larger than the sum of its proper divisors (25764063).

34121505 is a wasteful number, since it uses less digits than its factorization.

34121505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 34121505 is about 5841.3615707299. The cubic root of 34121505 is about 324.3466321471.

Adding to 34121505 its reverse (50512143), we get a palindrome (84633648).

The spelling of 34121505 in words is "thirty-four million, one hundred twenty-one thousand, five hundred five".