345512135 has 4 divisors (see below), whose sum is σ = 414614568. Its totient is φ = 276409704.

The previous prime is 345512129. The next prime is 345512137. The reversal of 345512135 is 531215543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 531215543 = 811 ⋅655013.

It is a cyclic number.

It is not a de Polignac number, because 345512135 - 2¹² = 345508039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 345512098 and 345512107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345512137) 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, 34551209 + ... + 34551218.

It is an arithmetic number, because the mean of its divisors is an integer number (103653642).

Almost surely, 2^345512135 is an apocalyptic number.

345512135 is a deficient number, since it is larger than the sum of its proper divisors (69102433).

345512135 is an equidigital number, since it uses as much as digits as its factorization.

345512135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69102432.

The product of its digits is 9000, while the sum is 29.

The square root of 345512135 is about 18587.9567193385. The cubic root of 345512135 is about 701.7047801816.

Adding to 345512135 its reverse (531215543), we get a palindrome (876727678).

The spelling of 345512135 in words is "three hundred forty-five million, five hundred twelve thousand, one hundred thirty-five".