1259271379 has 16 divisors (see below), whose sum is σ = 1451930400. Its totient is φ = 1084091904.

The previous prime is 1259271359. The next prime is 1259271427. The reversal of 1259271379 is 9731729521.

It is not a de Polignac number, because 1259271379 - 2⁵ = 1259271347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1259271359) 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 in 15 ways as a sum of consecutive naturals, for example, 57852 + ... + 76585.

It is an arithmetic number, because the mean of its divisors is an integer number (90745650).

Almost surely, 2^1259271379 is an apocalyptic number.

1259271379 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1259271379 is a deficient number, since it is larger than the sum of its proper divisors (192659021).

1259271379 is a wasteful number, since it uses less digits than its factorization.

1259271379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134502.

The product of its digits is 238140, while the sum is 46.

The square root of 1259271379 is about 35486.2139287921. The cubic root of 1259271379 is about 1079.8740648196.

The spelling of 1259271379 in words is "one billion, two hundred fifty-nine million, two hundred seventy-one thousand, three hundred seventy-nine".