1259134505 has 16 divisors (see below), whose sum is σ = 1522988544. Its totient is φ = 999311040.

The previous prime is 1259134493. The next prime is 1259134507. The reversal of 1259134505 is 5054319521.

It is not a de Polignac number, because 1259134505 - 2⁸ = 1259134249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1259134507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 965684 + ... + 966986.

It is an arithmetic number, because the mean of its divisors is an integer number (95186784).

Almost surely, 2^1259134505 is an apocalyptic number.

It is an amenable number.

1259134505 is a deficient number, since it is larger than the sum of its proper divisors (263854039).

1259134505 is a wasteful number, since it uses less digits than its factorization.

1259134505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2696.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 1259134505 is about 35484.2853246335. The cubic root of 1259134505 is about 1079.8349384801.

The spelling of 1259134505 in words is "one billion, two hundred fifty-nine million, one hundred thirty-four thousand, five hundred five".