1164161447 has 2 divisors, whose sum is σ = 1164161448. Its totient is φ = 1164161446.

The previous prime is 1164161429. The next prime is 1164161477. The reversal of 1164161447 is 7441614611.

It is a weak prime.

It is an emirp because it is prime and its reverse (7441614611) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1164161447 is a prime.

It is a super-2 number, since 2×1164161447² = 2710543749362267618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1164161477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582080723 + 582080724.

It is an arithmetic number, because the mean of its divisors is an integer number (582080724).

Almost surely, 2^1164161447 is an apocalyptic number.

1164161447 is a deficient number, since it is larger than the sum of its proper divisors (1).

1164161447 is an equidigital number, since it uses as much as digits as its factorization.

1164161447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 35.

The square root of 1164161447 is about 34119.8101841144. The cubic root of 1164161447 is about 1051.9725420771.

The spelling of 1164161447 in words is "one billion, one hundred sixty-four million, one hundred sixty-one thousand, four hundred forty-seven".