605122145 has 4 divisors (see below), whose sum is σ = 726146580. Its totient is φ = 484097712.

The previous prime is 605122097. The next prime is 605122151. The reversal of 605122145 is 541221506.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 152794321 + 452327824 = 12361^2 + 21268^2 .

It is a cyclic number.

It is not a de Polignac number, because 605122145 - 2⁸ = 605121889 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60512210 + ... + 60512219.

It is an arithmetic number, because the mean of its divisors is an integer number (181536645).

Almost surely, 2^605122145 is an apocalyptic number.

It is an amenable number.

605122145 is a deficient number, since it is larger than the sum of its proper divisors (121024435).

605122145 is a wasteful number, since it uses less digits than its factorization.

605122145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121024434.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 605122145 is about 24599.2305773981. The cubic root of 605122145 is about 845.8259701420.

The spelling of 605122145 in words is "six hundred five million, one hundred twenty-two thousand, one hundred forty-five".