1283513 has 16 divisors (see below), whose sum is σ = 1628160. Its totient is φ = 982800.

The previous prime is 1283509. The next prime is 1283521. The reversal of 1283513 is 3153821.

It is not a de Polignac number, because 1283513 - 2² = 1283509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1283543) 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, 5978 + ... + 6188.

It is an arithmetic number, because the mean of its divisors is an integer number (101760).

2^1283513 is an apocalyptic number.

It is an amenable number.

1283513 is a deficient number, since it is larger than the sum of its proper divisors (344647).

1283513 is a wasteful number, since it uses less digits than its factorization.

1283513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308.

The product of its digits is 720, while the sum is 23.

The square root of 1283513 is about 1132.9223274347. The cubic root of 1283513 is about 108.6759446497.

The spelling of 1283513 in words is "one million, two hundred eighty-three thousand, five hundred thirteen".