1255734877 has 2 divisors, whose sum is σ = 1255734878. Its totient is φ = 1255734876.

The previous prime is 1255734863. The next prime is 1255734881. The reversal of 1255734877 is 7784375521.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 792366201 + 463368676 = 28149^2 + 21526^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1255734877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1255734877.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1255734847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627867438 + 627867439.

It is an arithmetic number, because the mean of its divisors is an integer number (627867439).

Almost surely, 2^1255734877 is an apocalyptic number.

It is an amenable number.

1255734877 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255734877 is an equidigital number, since it uses as much as digits as its factorization.

1255734877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1646400, while the sum is 49.

The square root of 1255734877 is about 35436.3496568143. The cubic root of 1255734877 is about 1078.8622211251.

The spelling of 1255734877 in words is "one billion, two hundred fifty-five million, seven hundred thirty-four thousand, eight hundred seventy-seven".