342547 has 2 divisors, whose sum is σ = 342548. Its totient is φ = 342546.

The previous prime is 342527. The next prime is 342553. The reversal of 342547 is 745243.

It is a strong prime.

It is an emirp because it is prime and its reverse (745243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 342547 - 2¹⁵ = 309779 is a prime.

It is not a weakly prime, because it can be changed into another prime (342527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171273 + 171274.

It is an arithmetic number, because the mean of its divisors is an integer number (171274).

2³⁴²⁵⁴⁷ is an apocalyptic number.

342547 is a deficient number, since it is larger than the sum of its proper divisors (1).

342547 is an equidigital number, since it uses as much as digits as its factorization.

342547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 25.

The square root of 342547 is about 585.2751489684. The cubic root of 342547 is about 69.9691700971.

It can be divided in two parts, 34254 and 7, that multiplied together give a triangular number (239778 = T₆₉₂).

The spelling of 342547 in words is "three hundred forty-two thousand, five hundred forty-seven".