1265042183 has 2 divisors, whose sum is σ = 1265042184. Its totient is φ = 1265042182.

The previous prime is 1265042153. The next prime is 1265042237. The reversal of 1265042183 is 3812405621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1265042183 - 2¹⁴ = 1265025799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1265042143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632521091 + 632521092.

It is an arithmetic number, because the mean of its divisors is an integer number (632521092).

Almost surely, 2^1265042183 is an apocalyptic number.

1265042183 is a deficient number, since it is larger than the sum of its proper divisors (1).

1265042183 is an equidigital number, since it uses as much as digits as its factorization.

1265042183 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1265042183 is about 35567.4314928700. The cubic root of 1265042183 is about 1081.5211141993.

The spelling of 1265042183 in words is "one billion, two hundred sixty-five million, forty-two thousand, one hundred eighty-three".