345320515 has 16 divisors (see below), whose sum is σ = 427420800. Its totient is φ = 267683200.

The previous prime is 345320489. The next prime is 345320533. The reversal of 345320515 is 515023543.

It is not a de Polignac number, because 345320515 - 2⁵ = 345320483 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16461 + ... + 31009.

It is an arithmetic number, because the mean of its divisors is an integer number (26713800).

Almost surely, 2^345320515 is an apocalyptic number.

345320515 is a deficient number, since it is larger than the sum of its proper divisors (82100285).

345320515 is a wasteful number, since it uses less digits than its factorization.

345320515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14702.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 345320515 is about 18582.8015917945. The cubic root of 345320515 is about 701.5750350669.

The spelling of 345320515 in words is "three hundred forty-five million, three hundred twenty thousand, five hundred fifteen".