343189145 has 24 divisors (see below), whose sum is σ = 447417432. Its totient is φ = 252595200.

The previous prime is 343189129. The next prime is 343189157. The reversal of 343189145 is 541981343.

It can be written as a sum of positive squares in 12 ways, for example, as 278756416 + 64432729 = 16696^2 + 8027^2 .

It is not a de Polignac number, because 343189145 - 2⁴ = 343189129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 343189099 and 343189108.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 389105 + ... + 389985.

It is an arithmetic number, because the mean of its divisors is an integer number (18642393).

Almost surely, 2^343189145 is an apocalyptic number.

It is an amenable number.

343189145 is a deficient number, since it is larger than the sum of its proper divisors (104228287).

343189145 is a wasteful number, since it uses less digits than its factorization.

343189145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373 (or 1360 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 343189145 is about 18525.3649086867. The cubic root of 343189145 is about 700.1286464239.

The spelling of 343189145 in words is "three hundred forty-three million, one hundred eighty-nine thousand, one hundred forty-five".