1156446493 has 2 divisors, whose sum is σ = 1156446494. Its totient is φ = 1156446492.

The previous prime is 1156446481. The next prime is 1156446521. The reversal of 1156446493 is 3946446511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 660849849 + 495596644 = 25707^2 + 22262^2 .

It is a cyclic number.

It is not a de Polignac number, because 1156446493 - 2¹³ = 1156438301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1156446293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578223246 + 578223247.

It is an arithmetic number, because the mean of its divisors is an integer number (578223247).

Almost surely, 2^1156446493 is an apocalyptic number.

It is an amenable number.

1156446493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1156446493 is an equidigital number, since it uses as much as digits as its factorization.

1156446493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 43.

The square root of 1156446493 is about 34006.5654396324. The cubic root of 1156446493 is about 1049.6435654881.

The spelling of 1156446493 in words is "one billion, one hundred fifty-six million, four hundred forty-six thousand, four hundred ninety-three".