1283982385 has 16 divisors (see below), whose sum is σ = 1761636096. Its totient is φ = 880072128.

The previous prime is 1283982379. The next prime is 1283982407. The reversal of 1283982385 is 5832893821.

It is a cyclic number.

It is not a de Polignac number, because 1283982385 - 2⁵ = 1283982353 is a prime.

It is a super-2 number, since 2×1283982385² = 3297221529980576450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95287 + ... + 107923.

It is an arithmetic number, because the mean of its divisors is an integer number (110102256).

Almost surely, 2^1283982385 is an apocalyptic number.

It is an amenable number.

1283982385 is a deficient number, since it is larger than the sum of its proper divisors (477653711).

1283982385 is a wasteful number, since it uses less digits than its factorization.

1283982385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15552.

The product of its digits is 829440, while the sum is 49.

The square root of 1283982385 is about 35832.6999401385. The cubic root of 1283982385 is about 1086.8919075398.

The spelling of 1283982385 in words is "one billion, two hundred eighty-three million, nine hundred eighty-two thousand, three hundred eighty-five".