345442513 has 8 divisors (see below), whose sum is σ = 372828456. Its totient is φ = 318172800.

The previous prime is 345442483. The next prime is 345442529. The reversal of 345442513 is 315244543.

It can be written as a sum of positive squares in 4 ways, for example, as 18122049 + 327320464 = 4257^2 + 18092^2 .

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 345442513 - 2⁹ = 345442001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345442583) 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, 22828 + ... + 34813.

It is an arithmetic number, because the mean of its divisors is an integer number (46603557).

Almost surely, 2^345442513 is an apocalyptic number.

It is an amenable number.

345442513 is a deficient number, since it is larger than the sum of its proper divisors (27385943).

345442513 is a wasteful number, since it uses less digits than its factorization.

345442513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58115.

The product of its digits is 28800, while the sum is 31.

The square root of 345442513 is about 18586.0838532489. The cubic root of 345442513 is about 701.6576449611.

The spelling of 345442513 in words is "three hundred forty-five million, four hundred forty-two thousand, five hundred thirteen".