345811903 has 8 divisors (see below), whose sum is σ = 351645840. Its totient is φ = 340021440.

The previous prime is 345811883. The next prime is 345811927. The reversal of 345811903 is 309118543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 345811903 - 2⁹ = 345811391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345811933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5376 + ... + 26842.

It is an arithmetic number, because the mean of its divisors is an integer number (43955730).

Almost surely, 2^345811903 is an apocalyptic number.

345811903 is a deficient number, since it is larger than the sum of its proper divisors (5833937).

345811903 is a wasteful number, since it uses less digits than its factorization.

345811903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21737.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 345811903 is about 18596.0184717052. The cubic root of 345811903 is about 701.9076556751.

The spelling of 345811903 in words is "three hundred forty-five million, eight hundred eleven thousand, nine hundred three".