345212543 has 16 divisors (see below), whose sum is σ = 391028736. Its totient is φ = 302369760.

The previous prime is 345212533. The next prime is 345212561.

It is a happy number.

345212543 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 345212543 - 2¹² = 345208447 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345212513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33428 + ... + 42518.

It is an arithmetic number, because the mean of its divisors is an integer number (24439296).

Almost surely, 2^345212543 is an apocalyptic number.

345212543 is a deficient number, since it is larger than the sum of its proper divisors (45816193).

345212543 is a wasteful number, since it uses less digits than its factorization.

345212543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9254.

The product of its digits is 14400, while the sum is 29.

The square root of 345212543 is about 18579.8962053075. The cubic root of 345212543 is about 701.5019065261.

The spelling of 345212543 in words is "three hundred forty-five million, two hundred twelve thousand, five hundred forty-three".