345529681 has 8 divisors (see below), whose sum is σ = 401365184. Its totient is φ = 291312720.

The previous prime is 345529651. The next prime is 345529711. The reversal of 345529681 is 186925543.

It is an interprime number because it is at equal distance from previous prime (345529651) and next prime (345529711).

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 345529681 - 2¹⁵ = 345496913 is a prime.

It is a super-2 number, since 2×345529681² = 238781520903923522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345529651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404175 + ... + 405028.

It is an arithmetic number, because the mean of its divisors is an integer number (50170648).

Almost surely, 2^345529681 is an apocalyptic number.

It is an amenable number.

345529681 is a deficient number, since it is larger than the sum of its proper divisors (55835503).

345529681 is an equidigital number, since it uses as much as digits as its factorization.

345529681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809271.

The product of its digits is 259200, while the sum is 43.

The square root of 345529681 is about 18588.4286856098. The cubic root of 345529681 is about 701.7166581085.

The spelling of 345529681 in words is "three hundred forty-five million, five hundred twenty-nine thousand, six hundred eighty-one".