345081013 has 2 divisors, whose sum is σ = 345081014. Its totient is φ = 345081012.

The previous prime is 345080993. The next prime is 345081017. The reversal of 345081013 is 310180543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 339959844 + 5121169 = 18438^2 + 2263^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345081013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345081017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172540506 + 172540507.

It is an arithmetic number, because the mean of its divisors is an integer number (172540507).

Almost surely, 2^345081013 is an apocalyptic number.

It is an amenable number.

345081013 is a deficient number, since it is larger than the sum of its proper divisors (1).

345081013 is an equidigital number, since it uses as much as digits as its factorization.

345081013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 345081013 is about 18576.3562896495. The cubic root of 345081013 is about 701.4128017426.

The spelling of 345081013 in words is "three hundred forty-five million, eighty-one thousand, thirteen".