1611484379 has 2 divisors, whose sum is σ = 1611484380. Its totient is φ = 1611484378.

The previous prime is 1611484339. The next prime is 1611484393. The reversal of 1611484379 is 9734841161.

It is a strong prime.

It is an emirp because it is prime and its reverse (9734841161) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1611484379 is a prime.

It is a super-2 number, since 2×1611484379² = 5193763807522031282, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1611484339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 805742189 + 805742190.

It is an arithmetic number, because the mean of its divisors is an integer number (805742190).

Almost surely, 2^1611484379 is an apocalyptic number.

1611484379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1611484379 is an equidigital number, since it uses as much as digits as its factorization.

1611484379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 44.

The square root of 1611484379 is about 40143.2980583310. The cubic root of 1611484379 is about 1172.3988038436.

The spelling of 1611484379 in words is "one billion, six hundred eleven million, four hundred eighty-four thousand, three hundred seventy-nine".