345131144 has 16 divisors (see below), whose sum is σ = 685187100. Its totient is φ = 162414592.

The previous prime is 345131131. The next prime is 345131191. The reversal of 345131144 is 441131543.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 339664900 + 5466244 = 18430^2 + 2338^2 .

It is a super-3 number, since 3×345131144³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1268729 + ... + 1269000.

Almost surely, 2^345131144 is an apocalyptic number.

345131144 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

345131144 is a deficient number, since it is larger than the sum of its proper divisors (340055956).

345131144 is a wasteful number, since it uses less digits than its factorization.

345131144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2537752 (or 2537748 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 345131144 is about 18577.7055633897. The cubic root of 345131144 is about 701.4467655765.

Adding to 345131144 its reverse (441131543), we get a palindrome (786262687).

The spelling of 345131144 in words is "three hundred forty-five million, one hundred thirty-one thousand, one hundred forty-four".