345771645 has 16 divisors (see below), whose sum is σ = 553469760. Its totient is φ = 184333184.

The previous prime is 345771637. The next prime is 345771649. The reversal of 345771645 is 546177543.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 345771645 - 2³ = 345771637 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 345771597 and 345771606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345771649) 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, 56002 + ... + 61868.

It is an arithmetic number, because the mean of its divisors is an integer number (34591860).

Almost surely, 2^345771645 is an apocalyptic number.

It is an amenable number.

345771645 is a deficient number, since it is larger than the sum of its proper divisors (207698115).

345771645 is a wasteful number, since it uses less digits than its factorization.

345771645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9804.

The product of its digits is 352800, while the sum is 42.

The square root of 345771645 is about 18594.9360041921. The cubic root of 345771645 is about 701.8804168836.

The spelling of 345771645 in words is "three hundred forty-five million, seven hundred seventy-one thousand, six hundred forty-five".