345557303 has 16 divisors (see below), whose sum is σ = 430434816. Its totient is φ = 270108000.

The previous prime is 345557299. The next prime is 345557323. The reversal of 345557303 is 303755543.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 345557303 - 2² = 345557299 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345557323) 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, 15323 + ... + 30428.

It is an arithmetic number, because the mean of its divisors is an integer number (26902176).

Almost surely, 2^345557303 is an apocalyptic number.

345557303 is a deficient number, since it is larger than the sum of its proper divisors (84877513).

345557303 is a wasteful number, since it uses less digits than its factorization.

345557303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45854.

The product of its (nonzero) digits is 94500, while the sum is 35.

The square root of 345557303 is about 18589.1716598669. The cubic root of 345557303 is about 701.7353562620.

The spelling of 345557303 in words is "three hundred forty-five million, five hundred fifty-seven thousand, three hundred three".