1611409433 has 2 divisors, whose sum is σ = 1611409434. Its totient is φ = 1611409432.

The previous prime is 1611409421. The next prime is 1611409487. The reversal of 1611409433 is 3349041161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1599040144 + 12369289 = 39988^2 + 3517^2 .

It is a cyclic number.

It is not a de Polignac number, because 1611409433 - 2⁶ = 1611409369 is a prime.

It is a super-2 number, since 2×1611409433² = 5193280721522762978, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1611409433.

It is not a weakly prime, because it can be changed into another prime (1611408433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 805704716 + 805704717.

It is an arithmetic number, because the mean of its divisors is an integer number (805704717).

Almost surely, 2^1611409433 is an apocalyptic number.

It is an amenable number.

1611409433 is a deficient number, since it is larger than the sum of its proper divisors (1).

1611409433 is an equidigital number, since it uses as much as digits as its factorization.

1611409433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 1611409433 is about 40142.3645666271. The cubic root of 1611409433 is about 1172.3806284760.

The spelling of 1611409433 in words is "one billion, six hundred eleven million, four hundred nine thousand, four hundred thirty-three".