3520612345 has 8 divisors (see below), whose sum is σ = 4338917064. Its totient is φ = 2740368384.

The previous prime is 3520612343. The next prime is 3520612349. The reversal of 3520612345 is 5432160253.

It is a happy number.

3520612345 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1924050496 + 1596561849 = 43864^2 + 39957^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3520612345 - 2¹ = 3520612343 is a prime.

It is a super-2 number, since 2×3520612345² = 24789422567532798050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3520612343) 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, 9514984 + ... + 9515353.

It is an arithmetic number, because the mean of its divisors is an integer number (542364633).

Almost surely, 2^3520612345 is an apocalyptic number.

It is an amenable number.

3520612345 is a deficient number, since it is larger than the sum of its proper divisors (818304719).

3520612345 is a wasteful number, since it uses less digits than its factorization.

3520612345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19030379.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 3520612345 is about 59334.7482087857. The cubic root of 3520612345 is about 1521.2691882402.

Adding to 3520612345 its reverse (5432160253), we get a palindrome (8952772598).

The spelling of 3520612345 in words is "three billion, five hundred twenty million, six hundred twelve thousand, three hundred forty-five".