1255411099 has 2 divisors, whose sum is σ = 1255411100. Its totient is φ = 1255411098.

The previous prime is 1255411081. The next prime is 1255411141. The reversal of 1255411099 is 9901145521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1255411099 - 2⁵ = 1255411067 is a prime.

It is not a weakly prime, because it can be changed into another prime (1255411039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627705549 + 627705550.

It is an arithmetic number, because the mean of its divisors is an integer number (627705550).

Almost surely, 2^1255411099 is an apocalyptic number.

1255411099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255411099 is an equidigital number, since it uses as much as digits as its factorization.

1255411099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 37.

The square root of 1255411099 is about 35431.7809177016. The cubic root of 1255411099 is about 1078.7694887378.

It can be divided in two parts, 12554 and 11099, that added together give a triangular number (23653 = T₂₁₇).

The spelling of 1255411099 in words is "one billion, two hundred fifty-five million, four hundred eleven thousand, ninety-nine".