1283697223 has 4 divisors (see below), whose sum is σ = 1284970480. Its totient is φ = 1282423968.

The previous prime is 1283697211. The next prime is 1283697241. The reversal of 1283697223 is 3227963821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1283697223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1283697223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283697263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 635115 + ... + 637132.

It is an arithmetic number, because the mean of its divisors is an integer number (321242620).

Almost surely, 2^1283697223 is an apocalyptic number.

1283697223 is a deficient number, since it is larger than the sum of its proper divisors (1273257).

1283697223 is a wasteful number, since it uses less digits than its factorization.

1283697223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273256.

The product of its digits is 217728, while the sum is 43.

The square root of 1283697223 is about 35828.7206441983. The cubic root of 1283697223 is about 1086.8114383108.

The spelling of 1283697223 in words is "one billion, two hundred eighty-three million, six hundred ninety-seven thousand, two hundred twenty-three".