342545 has 8 divisors (see below), whose sum is σ = 469824. Its totient is φ = 234864.

The previous prime is 342527. The next prime is 342547. The reversal of 342545 is 545243.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 342545 - 2⁶ = 342481 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 342545.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 342545.

It is not an unprimeable number, because it can be changed into a prime (342547) 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, 4859 + ... + 4928.

It is an arithmetic number, because the mean of its divisors is an integer number (58728).

2³⁴²⁵⁴⁵ is an apocalyptic number.

342545 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

342545 is a deficient number, since it is larger than the sum of its proper divisors (127279).

342545 is an equidigital number, since it uses as much as digits as its factorization.

342545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9799.

The product of its digits is 2400, while the sum is 23.

The square root of 342545 is about 585.2734403678. The cubic root of 342545 is about 69.9690339225.

Adding to 342545 its reverse (545243), we get a palindrome (887788).

The spelling of 342545 in words is "three hundred forty-two thousand, five hundred forty-five".