1258242812 has 12 divisors (see below), whose sum is σ = 2202730656. Its totient is φ = 628891200.

The previous prime is 1258242773. The next prime is 1258242829. The reversal of 1258242812 is 2182428521.

It is a super-3 number, since 3×1258242812³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44948 + ... + 67355.

It is an arithmetic number, because the mean of its divisors is an integer number (183560888).

Almost surely, 2^1258242812 is an apocalyptic number.

It is an amenable number.

1258242812 is a deficient number, since it is larger than the sum of its proper divisors (944487844).

1258242812 is a wasteful number, since it uses less digits than its factorization.

1258242812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115108 (or 115106 counting only the distinct ones).

The product of its digits is 20480, while the sum is 35.

The square root of 1258242812 is about 35471.7184810660. The cubic root of 1258242812 is about 1079.5799726977.

The spelling of 1258242812 in words is "one billion, two hundred fifty-eight million, two hundred forty-two thousand, eight hundred twelve".