345527653 has 2 divisors, whose sum is σ = 345527654. Its totient is φ = 345527652.

The previous prime is 345527647. The next prime is 345527753. The reversal of 345527653 is 356725543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 343842849 + 1684804 = 18543^2 + 1298^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345527653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345527753) 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 as a sum of consecutive naturals, namely, 172763826 + 172763827.

It is an arithmetic number, because the mean of its divisors is an integer number (172763827).

Almost surely, 2^345527653 is an apocalyptic number.

It is an amenable number.

345527653 is a deficient number, since it is larger than the sum of its proper divisors (1).

345527653 is an equidigital number, since it uses as much as digits as its factorization.

345527653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 378000, while the sum is 40.

The square root of 345527653 is about 18588.3741354643. The cubic root of 345527653 is about 701.7152852557.

The spelling of 345527653 in words is "three hundred forty-five million, five hundred twenty-seven thousand, six hundred fifty-three".