373343561 has 2 divisors, whose sum is σ = 373343562. Its totient is φ = 373343560.

The previous prime is 373343543. The next prime is 373343609. The reversal of 373343561 is 165343373.

373343561 is nontrivially palindromic in base 9.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 345253561 + 28090000 = 18581^2 + 5300^2 .

It is a cyclic number.

It is not a de Polignac number, because 373343561 - 2¹⁰ = 373342537 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (373343461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 186671780 + 186671781.

It is an arithmetic number, because the mean of its divisors is an integer number (186671781).

Almost surely, 2^373343561 is an apocalyptic number.

It is an amenable number.

373343561 is a deficient number, since it is larger than the sum of its proper divisors (1).

373343561 is an equidigital number, since it uses as much as digits as its factorization.

373343561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 35.

The square root of 373343561 is about 19322.1003257927. The cubic root of 373343561 is about 720.0614408731.

The spelling of 373343561 in words is "three hundred seventy-three million, three hundred forty-three thousand, five hundred sixty-one".