343545403 has 4 divisors (see below), whose sum is σ = 361626760. Its totient is φ = 325464048.

The previous prime is 343545353. The next prime is 343545427. The reversal of 343545403 is 304545343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304545343 = 83 ⋅3669221.

It is a cyclic number.

It is not a de Polignac number, because 343545403 - 2¹³ = 343537211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343545463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9040650 + ... + 9040687.

It is an arithmetic number, because the mean of its divisors is an integer number (90406690).

Almost surely, 2^343545403 is an apocalyptic number.

343545403 is a deficient number, since it is larger than the sum of its proper divisors (18081357).

343545403 is a wasteful number, since it uses less digits than its factorization.

343545403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18081356.

The product of its (nonzero) digits is 43200, while the sum is 31.

The square root of 343545403 is about 18534.9778257218. The cubic root of 343545403 is about 700.3708259687.

The spelling of 343545403 in words is "three hundred forty-three million, five hundred forty-five thousand, four hundred three".