345387145 has 8 divisors (see below), whose sum is σ = 415962504. Its totient is φ = 275311104.

The previous prime is 345387143. The next prime is 345387197. The reversal of 345387145 is 541783543.

It can be written as a sum of positive squares in 4 ways, for example, as 17740944 + 327646201 = 4212^2 + 18101^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 345387145 - 2¹ = 345387143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 345387098 and 345387107.

It is not an unprimeable number, because it can be changed into a prime (345387143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123304 + ... + 126073.

It is an arithmetic number, because the mean of its divisors is an integer number (51995313).

Almost surely, 2^345387145 is an apocalyptic number.

It is an amenable number.

345387145 is a deficient number, since it is larger than the sum of its proper divisors (70575359).

345387145 is a wasteful number, since it uses less digits than its factorization.

345387145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249659.

The product of its digits is 201600, while the sum is 40.

The square root of 345387145 is about 18584.5942920474. The cubic root of 345387145 is about 701.6201554080.

The spelling of 345387145 in words is "three hundred forty-five million, three hundred eighty-seven thousand, one hundred forty-five".