345553357 has 16 divisors (see below), whose sum is σ = 374336640. Its totient is φ = 317998912.

The previous prime is 345553343. The next prime is 345553387. The reversal of 345553357 is 753355543.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 345553357 - 2¹⁵ = 345520589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345553337) 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, 230703 + ... + 232195.

It is an arithmetic number, because the mean of its divisors is an integer number (23396040).

Almost surely, 2^345553357 is an apocalyptic number.

It is an amenable number.

345553357 is a deficient number, since it is larger than the sum of its proper divisors (28783283).

345553357 is a wasteful number, since it uses less digits than its factorization.

345553357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892.

The product of its digits is 472500, while the sum is 40.

The square root of 345553357 is about 18589.0655225054. The cubic root of 345553357 is about 701.7326851583.

The spelling of 345553357 in words is "three hundred forty-five million, five hundred fifty-three thousand, three hundred fifty-seven".