605451643 has 4 divisors (see below), whose sum is σ = 605510640. Its totient is φ = 605392648.

The previous prime is 605451557. The next prime is 605451661. The reversal of 605451643 is 346154506.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 605451643 - 2²⁵ = 571897211 is a prime.

It is a super-2 number, since 2×605451643² = 733143384022798898, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 605451599 and 605451608.

It is not an unprimeable number, because it can be changed into a prime (605451943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9655 + ... + 36112.

It is an arithmetic number, because the mean of its divisors is an integer number (151377660).

Almost surely, 2^605451643 is an apocalyptic number.

605451643 is a deficient number, since it is larger than the sum of its proper divisors (58997).

605451643 is a wasteful number, since it uses less digits than its factorization.

605451643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58996.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 605451643 is about 24605.9269892439. The cubic root of 605451643 is about 845.9794638887.

The spelling of 605451643 in words is "six hundred five million, four hundred fifty-one thousand, six hundred forty-three".