345053503 has 8 divisors (see below), whose sum is σ = 346741200. Its totient is φ = 343370688.

The previous prime is 345053477. The next prime is 345053507. The reversal of 345053503 is 305350543.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345053503 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 (345053507) 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, 240075 + ... + 241507.

It is an arithmetic number, because the mean of its divisors is an integer number (43342650).

Almost surely, 2^345053503 is an apocalyptic number.

345053503 is a deficient number, since it is larger than the sum of its proper divisors (1687697).

345053503 is a wasteful number, since it uses less digits than its factorization.

345053503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2441.

The product of its (nonzero) digits is 13500, while the sum is 28.

The square root of 345053503 is about 18575.6158175173. The cubic root of 345053503 is about 701.3941622751.

It can be divided in two parts, 3450 and 53503, that added together give a triangular number (56953 = T₃₃₇).

The spelling of 345053503 in words is "three hundred forty-five million, fifty-three thousand, five hundred three".