345306541 has 4 divisors (see below), whose sum is σ = 345362400. Its totient is φ = 345250684.

The previous prime is 345306497. The next prime is 345306553. The reversal of 345306541 is 145603543.

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: 145603543 = 5417 ⋅26879.

It is a cyclic number.

It is not a de Polignac number, because 345306541 - 2⁷ = 345306413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345306041) 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, 17311 + ... + 31468.

It is an arithmetic number, because the mean of its divisors is an integer number (86340600).

Almost surely, 2^345306541 is an apocalyptic number.

It is an amenable number.

345306541 is a deficient number, since it is larger than the sum of its proper divisors (55859).

345306541 is an equidigital number, since it uses as much as digits as its factorization.

345306541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55858.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 345306541 is about 18582.4255951692. The cubic root of 345306541 is about 701.5655714513.

The spelling of 345306541 in words is "three hundred forty-five million, three hundred six thousand, five hundred forty-one".