345517741 has 4 divisors (see below), whose sum is σ = 365842332. Its totient is φ = 325193152.

The previous prime is 345517693. The next prime is 345517751. The reversal of 345517741 is 147715543.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 143280900 + 202236841 = 11970^2 + 14221^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345517741 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 345517741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345517751) 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, 10162270 + ... + 10162303.

It is an arithmetic number, because the mean of its divisors is an integer number (91460583).

Almost surely, 2^345517741 is an apocalyptic number.

It is an amenable number.

345517741 is a deficient number, since it is larger than the sum of its proper divisors (20324591).

345517741 is a wasteful number, since it uses less digits than its factorization.

345517741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20324590.

The product of its digits is 58800, while the sum is 37.

The square root of 345517741 is about 18588.1075152905. The cubic root of 345517741 is about 701.7085752588.

The spelling of 345517741 in words is "three hundred forty-five million, five hundred seventeen thousand, seven hundred forty-one".