345212803 has 4 divisors (see below), whose sum is σ = 371767648. Its totient is φ = 318657960.

The previous prime is 345212783. The next prime is 345212821. The reversal of 345212803 is 308212543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 308212543 = 53 ⋅5815331.

It is a cyclic number.

It is not a de Polignac number, because 345212803 - 2¹³ = 345204611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345215803) 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, 13277403 + ... + 13277428.

It is an arithmetic number, because the mean of its divisors is an integer number (92941912).

Almost surely, 2^345212803 is an apocalyptic number.

345212803 is a deficient number, since it is larger than the sum of its proper divisors (26554845).

345212803 is a wasteful number, since it uses less digits than its factorization.

345212803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26554844.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 345212803 is about 18579.9032021160. The cubic root of 345212803 is about 701.5020826403.

The spelling of 345212803 in words is "three hundred forty-five million, two hundred twelve thousand, eight hundred three".