1611161593 has 2 divisors, whose sum is σ = 1611161594. Its totient is φ = 1611161592.

The previous prime is 1611161567. The next prime is 1611161609. The reversal of 1611161593 is 3951611161.

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., 1552990464 + 58171129 = 39408^2 + 7627^2 .

It is a cyclic number.

It is not a de Polignac number, because 1611161593 - 2¹⁷ = 1611030521 is a prime.

It is not a weakly prime, because it can be changed into another prime (1611162593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 805580796 + 805580797.

It is an arithmetic number, because the mean of its divisors is an integer number (805580797).

Almost surely, 2^1611161593 is an apocalyptic number.

It is an amenable number.

1611161593 is a deficient number, since it is larger than the sum of its proper divisors (1).

1611161593 is an equidigital number, since it uses as much as digits as its factorization.

1611161593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4860, while the sum is 34.

The square root of 1611161593 is about 40139.2774349514. The cubic root of 1611161593 is about 1172.3205200792.

The spelling of 1611161593 in words is "one billion, six hundred eleven million, one hundred sixty-one thousand, five hundred ninety-three".