345541 has 4 divisors (see below), whose sum is σ = 394912. Its totient is φ = 296172.

The previous prime is 345533. The next prime is 345547. The reversal of 345541 is 145543.

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.

It is a cyclic number.

It is not a de Polignac number, because 345541 - 2³ = 345533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345547) 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, 24675 + ... + 24688.

It is an arithmetic number, because the mean of its divisors is an integer number (98728).

2³⁴⁵⁵⁴¹ is an apocalyptic number.

It is an amenable number.

345541 is a deficient number, since it is larger than the sum of its proper divisors (49371).

345541 is an equidigital number, since it uses as much as digits as its factorization.

345541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49370.

The product of its digits is 1200, while the sum is 22.

The square root of 345541 is about 587.8273556071. The cubic root of 345541 is about 70.1724320397.

The spelling of 345541 in words is "three hundred forty-five thousand, five hundred forty-one".