1606612057 has 2 divisors, whose sum is σ = 1606612058. Its totient is φ = 1606612056.

The previous prime is 1606612009. The next prime is 1606612087. The reversal of 1606612057 is 7502166061.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1359839376 + 246772681 = 36876^2 + 15709^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1606612057 is a prime.

It is not a weakly prime, because it can be changed into another prime (1606612087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803306028 + 803306029.

It is an arithmetic number, because the mean of its divisors is an integer number (803306029).

Almost surely, 2^1606612057 is an apocalyptic number.

It is an amenable number.

1606612057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1606612057 is an equidigital number, since it uses as much as digits as its factorization.

1606612057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 1606612057 is about 40082.5654992292. The cubic root of 1606612057 is about 1171.2160286543.

The spelling of 1606612057 in words is "one billion, six hundred six million, six hundred twelve thousand, fifty-seven".