1259042493 has 16 divisors (see below), whose sum is σ = 1705287680. Its totient is φ = 826101936.

The previous prime is 1259042489. The next prime is 1259042527. The reversal of 1259042493 is 3942409521.

It is not a de Polignac number, because 1259042493 - 2² = 1259042489 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1259042483) 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, 315396 + ... + 319362.

It is an arithmetic number, because the mean of its divisors is an integer number (106580480).

Almost surely, 2^1259042493 is an apocalyptic number.

It is an amenable number.

1259042493 is a deficient number, since it is larger than the sum of its proper divisors (446245187).

1259042493 is a wasteful number, since it uses less digits than its factorization.

1259042493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5616.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 1259042493 is about 35482.9887833593. The cubic root of 1259042493 is about 1079.8086346468.

The spelling of 1259042493 in words is "one billion, two hundred fifty-nine million, forty-two thousand, four hundred ninety-three".