1258982465 has 32 divisors (see below), whose sum is σ = 1716449280. Its totient is φ = 878812416.

The previous prime is 1258982411. The next prime is 1258982471. The reversal of 1258982465 is 5642898521.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1258982465 - 2⁶ = 1258982401 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 756224 + ... + 757886.

It is an arithmetic number, because the mean of its divisors is an integer number (53639040).

Almost surely, 2^1258982465 is an apocalyptic number.

It is an amenable number.

1258982465 is a deficient number, since it is larger than the sum of its proper divisors (457466815).

1258982465 is a wasteful number, since it uses less digits than its factorization.

1258982465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2313.

The product of its digits is 1382400, while the sum is 50.

The square root of 1258982465 is about 35482.1429031562. The cubic root of 1258982465 is about 1079.7914735149.

The spelling of 1258982465 in words is "one billion, two hundred fifty-eight million, nine hundred eighty-two thousand, four hundred sixty-five".