1255378541 has 2 divisors, whose sum is σ = 1255378542. Its totient is φ = 1255378540.

The previous prime is 1255378499. The next prime is 1255378547. The reversal of 1255378541 is 1458735521.

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., 1253868100 + 1510441 = 35410^2 + 1229^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1255378541 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1255378547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627689270 + 627689271.

It is an arithmetic number, because the mean of its divisors is an integer number (627689271).

Almost surely, 2^1255378541 is an apocalyptic number.

It is an amenable number.

1255378541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255378541 is an equidigital number, since it uses as much as digits as its factorization.

1255378541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 168000, while the sum is 41.

The square root of 1255378541 is about 35431.3214684409. The cubic root of 1255378541 is about 1078.7601630063.

The spelling of 1255378541 in words is "one billion, two hundred fifty-five million, three hundred seventy-eight thousand, five hundred forty-one".