1255782043 has 2 divisors, whose sum is σ = 1255782044. Its totient is φ = 1255782042.

The previous prime is 1255782023. The next prime is 1255782089. The reversal of 1255782043 is 3402875521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1255782043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1255781993 and 1255782011.

It is not a weakly prime, because it can be changed into another prime (1255782023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627891021 + 627891022.

It is an arithmetic number, because the mean of its divisors is an integer number (627891022).

Almost surely, 2^1255782043 is an apocalyptic number.

1255782043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255782043 is an equidigital number, since it uses as much as digits as its factorization.

1255782043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 1255782043 is about 35437.0151536497. The cubic root of 1255782043 is about 1078.8757284822.

The spelling of 1255782043 in words is "one billion, two hundred fifty-five million, seven hundred eighty-two thousand, forty-three".