345707513 has 4 divisors (see below), whose sum is σ = 353063040. Its totient is φ = 338351988.

The previous prime is 345707507. The next prime is 345707519. The reversal of 345707513 is 315707543.

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: 315707543 = 29 ⋅10886467.

It is an interprime number because it is at equal distance from previous prime (345707507) and next prime (345707519).

It is a cyclic number.

It is not a de Polignac number, because 345707513 - 2¹⁰ = 345706489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345707519) 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, 3677693 + ... + 3677786.

It is an arithmetic number, because the mean of its divisors is an integer number (88265760).

Almost surely, 2^345707513 is an apocalyptic number.

It is an amenable number.

345707513 is a deficient number, since it is larger than the sum of its proper divisors (7355527).

345707513 is an equidigital number, since it uses as much as digits as its factorization.

345707513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7355526.

The product of its (nonzero) digits is 44100, while the sum is 35.

The square root of 345707513 is about 18593.2114762351. The cubic root of 345707513 is about 701.8370204409.

The spelling of 345707513 in words is "three hundred forty-five million, seven hundred seven thousand, five hundred thirteen".