1160609381 has 4 divisors (see below), whose sum is σ = 1176956064. Its totient is φ = 1144262700.

The previous prime is 1160609347. The next prime is 1160609413. The reversal of 1160609381 is 1839060611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1839060611 = 23 ⋅79959157.

It is a cyclic number.

It is not a de Polignac number, because 1160609381 - 2¹⁰ = 1160608357 is a prime.

It is a super-2 number, since 2×1160609381² = 2694028270530406322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1160609311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8173235 + ... + 8173376.

It is an arithmetic number, because the mean of its divisors is an integer number (294239016).

Almost surely, 2^1160609381 is an apocalyptic number.

It is an amenable number.

1160609381 is a deficient number, since it is larger than the sum of its proper divisors (16346683).

1160609381 is an equidigital number, since it uses as much as digits as its factorization.

1160609381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16346682.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 1160609381 is about 34067.7175783762. The cubic root of 1160609381 is about 1050.9015329005.

Adding to 1160609381 its reverse (1839060611), we get a palindrome (2999669992).

The spelling of 1160609381 in words is "one billion, one hundred sixty million, six hundred nine thousand, three hundred eighty-one".