1255434049 has 2 divisors, whose sum is σ = 1255434050. Its totient is φ = 1255434048.

The previous prime is 1255434017. The next prime is 1255434067. The reversal of 1255434049 is 9404345521.

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., 967521025 + 287913024 = 31105^2 + 16968^2 .

It is a cyclic number.

It is not a de Polignac number, because 1255434049 - 2⁵ = 1255434017 is a prime.

It is a super-2 number, since 2×1255434049² = 3152229302777068802, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1255433999 and 1255434017.

It is not a weakly prime, because it can be changed into another prime (1255434079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627717024 + 627717025.

It is an arithmetic number, because the mean of its divisors is an integer number (627717025).

Almost surely, 2^1255434049 is an apocalyptic number.

It is an amenable number.

1255434049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255434049 is an equidigital number, since it uses as much as digits as its factorization.

1255434049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 1255434049 is about 35432.1047780117. The cubic root of 1255434049 is about 1078.7760623107.

The spelling of 1255434049 in words is "one billion, two hundred fifty-five million, four hundred thirty-four thousand, forty-nine".