345532129 has 4 divisors (see below), whose sum is σ = 357447060. Its totient is φ = 333617200.

The previous prime is 345532111. The next prime is 345532153. The reversal of 345532129 is 921235543.

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

It can be written as a sum of positive squares in 2 ways, for example, as 250430625 + 95101504 = 15825^2 + 9752^2 .

It is a cyclic number.

It is not a de Polignac number, because 345532129 - 2⁷ = 345532001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 345532094 and 345532103.

It is not an unprimeable number, because it can be changed into a prime (345512129) 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 3 ways as a sum of consecutive naturals, for example, 5957422 + ... + 5957479.

It is an arithmetic number, because the mean of its divisors is an integer number (89361765).

Almost surely, 2^345532129 is an apocalyptic number.

It is an amenable number.

345532129 is a deficient number, since it is larger than the sum of its proper divisors (11914931).

345532129 is a wasteful number, since it uses less digits than its factorization.

345532129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11914930.

The product of its digits is 32400, while the sum is 34.

The square root of 345532129 is about 18588.4945329093. The cubic root of 345532129 is about 701.7183152728.

The spelling of 345532129 in words is "three hundred forty-five million, five hundred thirty-two thousand, one hundred twenty-nine".