345135653 has 2 divisors, whose sum is σ = 345135654. Its totient is φ = 345135652.

The previous prime is 345135643. The next prime is 345135697. The reversal of 345135653 is 356531543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204547204 + 140588449 = 14302^2 + 11857^2 .

It is an emirp because it is prime and its reverse (356531543) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345135653 is a prime.

It is a super-3 number, since 3×345135653³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345135643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172567826 + 172567827.

It is an arithmetic number, because the mean of its divisors is an integer number (172567827).

Almost surely, 2^345135653 is an apocalyptic number.

It is an amenable number.

345135653 is a deficient number, since it is larger than the sum of its proper divisors (1).

345135653 is an equidigital number, since it uses as much as digits as its factorization.

345135653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81000, while the sum is 35.

The square root of 345135653 is about 18577.8269181301. The cubic root of 345135653 is about 701.4498202701.

The spelling of 345135653 in words is "three hundred forty-five million, one hundred thirty-five thousand, six hundred fifty-three".