348542531 has 4 divisors (see below), whose sum is σ = 348597672. Its totient is φ = 348487392.

The previous prime is 348542521. The next prime is 348542569. The reversal of 348542531 is 135245843.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-348542531 is a prime.

It is a super-2 number, since 2×348542531² = 242963791831771922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 348542491 and 348542500.

It is not an unprimeable number, because it can be changed into a prime (348542521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16646 + ... + 31211.

It is an arithmetic number, because the mean of its divisors is an integer number (87149418).

Almost surely, 2^348542531 is an apocalyptic number.

348542531 is a deficient number, since it is larger than the sum of its proper divisors (55141).

348542531 is an equidigital number, since it uses as much as digits as its factorization.

348542531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55140.

The product of its digits is 57600, while the sum is 35.

The square root of 348542531 is about 18669.2938002486. The cubic root of 348542531 is about 703.7503008600.

The spelling of 348542531 in words is "three hundred forty-eight million, five hundred forty-two thousand, five hundred thirty-one".