1091975383 has 2 divisors, whose sum is σ = 1091975384. Its totient is φ = 1091975382.

The previous prime is 1091975369. The next prime is 1091975389. The reversal of 1091975383 is 3835791901.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1091975383 - 2¹⁷ = 1091844311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1091975389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545987691 + 545987692.

It is an arithmetic number, because the mean of its divisors is an integer number (545987692).

Almost surely, 2^1091975383 is an apocalyptic number.

1091975383 is a deficient number, since it is larger than the sum of its proper divisors (1).

1091975383 is an equidigital number, since it uses as much as digits as its factorization.

1091975383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 46.

The square root of 1091975383 is about 33045.0508094631. The cubic root of 1091975383 is about 1029.7637887970.

The spelling of 1091975383 in words is "one billion, ninety-one million, nine hundred seventy-five thousand, three hundred eighty-three".