345181647 has 4 divisors (see below), whose sum is σ = 460242200. Its totient is φ = 230121096.

The previous prime is 345181579. The next prime is 345181657. The reversal of 345181647 is 746181543.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 345181647 - 2⁸ = 345181391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345181657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57530272 + ... + 57530277.

It is an arithmetic number, because the mean of its divisors is an integer number (115060550).

Almost surely, 2^345181647 is an apocalyptic number.

345181647 is a deficient number, since it is larger than the sum of its proper divisors (115060553).

345181647 is a wasteful number, since it uses less digits than its factorization.

345181647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115060552.

The product of its digits is 80640, while the sum is 39.

The square root of 345181647 is about 18579.0647504120. The cubic root of 345181647 is about 701.4809781155.

The spelling of 345181647 in words is "three hundred forty-five million, one hundred eighty-one thousand, six hundred forty-seven".