345131445 has 16 divisors (see below), whose sum is σ = 576220032. Its totient is φ = 176066880.

The previous prime is 345131441. The next prime is 345131453. The reversal of 345131445 is 544131543.

It is not a de Polignac number, because 345131445 - 2² = 345131441 is a prime.

It is a super-3 number, since 3×345131445³ (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345131441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 499846 + ... + 500535.

It is an arithmetic number, because the mean of its divisors is an integer number (36013752).

Almost surely, 2^345131445 is an apocalyptic number.

It is an amenable number.

345131445 is a deficient number, since it is larger than the sum of its proper divisors (231088587).

345131445 is a wasteful number, since it uses less digits than its factorization.

345131445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000412.

The product of its digits is 14400, while the sum is 30.

The square root of 345131445 is about 18577.7136644960. The cubic root of 345131445 is about 701.4469694945.

Adding to 345131445 its reverse (544131543), we get a palindrome (889262988).

The spelling of 345131445 in words is "three hundred forty-five million, one hundred thirty-one thousand, four hundred forty-five".