345523315 has 4 divisors (see below), whose sum is σ = 414627984. Its totient is φ = 276418648.

The previous prime is 345523307. The next prime is 345523331. The reversal of 345523315 is 513325543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 513325543 = 9349 ⋅54907.

It is a cyclic number.

It is not a de Polignac number, because 345523315 - 2³ = 345523307 is a prime.

It is a super-2 number, since 2×345523315² = 238772722417178450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34552327 + ... + 34552336.

It is an arithmetic number, because the mean of its divisors is an integer number (103656996).

Almost surely, 2^345523315 is an apocalyptic number.

345523315 is a deficient number, since it is larger than the sum of its proper divisors (69104669).

345523315 is an equidigital number, since it uses as much as digits as its factorization.

345523315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69104668.

The product of its digits is 27000, while the sum is 31.

The square root of 345523315 is about 18588.2574492608. The cubic root of 345523315 is about 701.7123486324.

Adding to 345523315 its reverse (513325543), we get a palindrome (858848858).

The spelling of 345523315 in words is "three hundred forty-five million, five hundred twenty-three thousand, three hundred fifteen".