1281834383 has 2 divisors, whose sum is σ = 1281834384. Its totient is φ = 1281834382.

The previous prime is 1281834317. The next prime is 1281834403. The reversal of 1281834383 is 3834381821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1281834383 - 2¹⁶ = 1281768847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1281834383.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1281834583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 640917191 + 640917192.

It is an arithmetic number, because the mean of its divisors is an integer number (640917192).

Almost surely, 2^1281834383 is an apocalyptic number.

1281834383 is a deficient number, since it is larger than the sum of its proper divisors (1).

1281834383 is an equidigital number, since it uses as much as digits as its factorization.

1281834383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 41.

The square root of 1281834383 is about 35802.7147434381. The cubic root of 1281834383 is about 1086.2854742214.

The spelling of 1281834383 in words is "one billion, two hundred eighty-one million, eight hundred thirty-four thousand, three hundred eighty-three".