34312513 has 4 divisors (see below), whose sum is σ = 34456320. Its totient is φ = 34168708.

The previous prime is 34312501. The next prime is 34312519. The reversal of 34312513 is 31521343.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31521343 = 7 ⋅4503049.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34312513 is a prime.

It is a super-4 number, since 4×34312513⁴ (a number of 31 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34312519) 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, 71545 + ... + 72022.

It is an arithmetic number, because the mean of its divisors is an integer number (8614080).

Almost surely, 2^34312513 is an apocalyptic number.

It is an amenable number.

34312513 is a deficient number, since it is larger than the sum of its proper divisors (143807).

34312513 is a wasteful number, since it uses less digits than its factorization.

34312513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143806.

The product of its digits is 1080, while the sum is 22.

The square root of 34312513 is about 5857.6883665828. The cubic root of 34312513 is about 324.9507238901.

Adding to 34312513 its reverse (31521343), we get a palindrome (65833856).

The spelling of 34312513 in words is "thirty-four million, three hundred twelve thousand, five hundred thirteen".